64165237092456 has 32 divisors (see below), whose sum is σ = 160413486583200. Its totient is φ = 21388359850560.

The previous prime is 64165237092431. The next prime is 64165237092533. The reversal of 64165237092456 is 65429073256146.

It is a happy number.

It is a super-2 number, since 2×64165237092456² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64165237092456.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7407030 + ... + 13534938.

It is an arithmetic number, because the mean of its divisors is an integer number (5012921455725).

Almost surely, 2^{64165237092456} is an apocalyptic number.

It is an amenable number.

64165237092456 is an abundant number, since it is smaller than the sum of its proper divisors (96248249490744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64165237092456 is a wasteful number, since it uses less digits than its factorization.

64165237092456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6564209 (or 6564205 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 60.

The spelling of 64165237092456 in words is "sixty-four trillion, one hundred sixty-five billion, two hundred thirty-seven million, ninety-two thousand, four hundred fifty-six".