64572157011296 has 72 divisors (see below), whose sum is σ = 144241563477312. Its totient is φ = 28404174585600.

The previous prime is 64572157011283. The next prime is 64572157011319. The reversal of 64572157011296 is 69211075127546.

It is a super-4 number, since 4×64572157011296⁴ (a number of 56 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268858895 + ... + 269098958.

It is an arithmetic number, because the mean of its divisors is an integer number (2003355048296).

Almost surely, 2^{64572157011296} is an apocalyptic number.

It is an amenable number.

64572157011296 is an abundant number, since it is smaller than the sum of its proper divisors (79669406466016).

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

64572157011296 is a wasteful number, since it uses less digits than its factorization.

64572157011296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537957916 (or 537957897 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 56.

The spelling of 64572157011296 in words is "sixty-four trillion, five hundred seventy-two billion, one hundred fifty-seven million, eleven thousand, two hundred ninety-six".