64017992275446 has 24 divisors (see below), whose sum is σ = 140733768144312. Its totient is φ = 19399391598400.

The previous prime is 64017992275441. The next prime is 64017992275453. The reversal of 64017992275446 is 64457229971046.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64017992275441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44089525635 + ... + 44089527086.

It is an arithmetic number, because the mean of its divisors is an integer number (5863907006013).

Almost surely, 2^{64017992275446} is an apocalyptic number.

64017992275446 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

64017992275446 is an abundant number, since it is smaller than the sum of its proper divisors (76715775868866).

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

64017992275446 is a wasteful number, since it uses less digits than its factorization.

64017992275446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88179052748 (or 88179052737 counting only the distinct ones).

The product of its (nonzero) digits is 182891520, while the sum is 66.

The spelling of 64017992275446 in words is "sixty-four trillion, seventeen billion, nine hundred ninety-two million, two hundred seventy-five thousand, four hundred forty-six".