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64141606221 = 37112207125813
BaseRepresentation
bin111011101111001000…
…110011110101001101
320010120010202012102020
4323233020303311031
52022330222344341
645244413120353
74430326441260
oct735710636515
9203503665366
1064141606221
11252252a0120
1210520a890b9
1360827cc064
143166948cd7
151a0614a566
hexeef233d4d

64141606221 has 32 divisors (see below), whose sum is σ = 106674167808. Its totient is φ = 33304952640.

The previous prime is 64141606211. The next prime is 64141606231. The reversal of 64141606221 is 12260614146.

It is an interprime number because it is at equal distance from previous prime (64141606211) and next prime (64141606231).

It is not a de Polignac number, because 64141606221 - 25 = 64141606189 is a prime.

It is a super-2 number, since 2×641416062212 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64141606211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 446911 + ... + 572723.

It is an arithmetic number, because the mean of its divisors is an integer number (3333567744).

Almost surely, 264141606221 is an apocalyptic number.

It is an amenable number.

64141606221 is a deficient number, since it is larger than the sum of its proper divisors (42532561587).

64141606221 is a wasteful number, since it uses less digits than its factorization.

64141606221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128041.

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 64141606221 in words is "sixty-four billion, one hundred forty-one million, six hundred six thousand, two hundred twenty-one".

Divisors: 1 3 7 11 21 33 77 231 2207 6621 15449 24277 46347 72831 125813 169939 377439 509817 880691 1383943 2642073 4151829 9687601 29062803 277669291 833007873 1943685037 3054362201 5831055111 9163086603 21380535407 64141606221