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57664150181 = 1143320875801
BaseRepresentation
bin110101101101000011…
…010001101010100101
312111211201021100011222
4311231003101222211
51421044010301211
642253542510125
74110654121631
oct655503215245
9174751240158
1057664150181
1122500a00570
12b213735345
13558c842531
142b10571dc1
15177764e1db
hexd6d0d1aa5

57664150181 has 16 divisors (see below), whose sum is σ = 63092711808. Its totient is φ = 52266816000.

The previous prime is 57664150169. The next prime is 57664150189. The reversal of 57664150181 is 18105146675.

57664150181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 57664150181 - 222 = 57659955877 is a prime.

It is a super-2 number, since 2×576641501812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57664150189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9937481 + ... + 9943281.

It is an arithmetic number, because the mean of its divisors is an integer number (3943294488).

Almost surely, 257664150181 is an apocalyptic number.

It is an amenable number.

57664150181 is a deficient number, since it is larger than the sum of its proper divisors (5428561627).

57664150181 is a wasteful number, since it uses less digits than its factorization.

57664150181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8332.

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 57664150181 in words is "fifty-seven billion, six hundred sixty-four million, one hundred fifty thousand, one hundred eighty-one".

Divisors: 1 11 433 2087 4763 5801 22957 63811 903671 2511833 9940381 12106687 27630163 133173557 5242195471 57664150181