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64165306407 = 3144714781227
BaseRepresentation
bin111011110000100011…
…001110000000100111
320010121210100021221220
4323300203032000213
52022402304301112
645251021111423
74431035051106
oct736043160047
9203553307856
1064165306407
1125237708454
12105289b8573
1360876a9737
143169b5803d
151a0827c98c
hexef08ce027

64165306407 has 8 divisors (see below), whose sum is σ = 85612872576. Its totient is φ = 42747305592.

The previous prime is 64165306397. The next prime is 64165306441. The reversal of 64165306407 is 70460356146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64165306407 - 219 = 64164782119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64165306307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7386273 + ... + 7394954.

It is an arithmetic number, because the mean of its divisors is an integer number (10701609072).

Almost surely, 264165306407 is an apocalyptic number.

64165306407 is a deficient number, since it is larger than the sum of its proper divisors (21447566169).

64165306407 is a wasteful number, since it uses less digits than its factorization.

64165306407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14782677.

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 64165306407 in words is "sixty-four billion, one hundred sixty-five million, three hundred six thousand, four hundred seven".

Divisors: 1 3 1447 4341 14781227 44343681 21388435469 64165306407