64155151572 has 24 divisors (see below), whose sum is σ = 150531645600. Its totient is φ = 21265580256.

The previous prime is 64155151519. The next prime is 64155151573. The reversal of 64155151572 is 27515155146.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64155151573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14931547 + ... + 14935842.

It is an arithmetic number, because the mean of its divisors is an integer number (6272151900).

Almost surely, 2^64155151572 is an apocalyptic number.

It is an amenable number.

64155151572 is an abundant number, since it is smaller than the sum of its proper divisors (86376494028).

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

64155151572 is a wasteful number, since it uses less digits than its factorization.

64155151572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29867575 (or 29867573 counting only the distinct ones).

The product of its digits is 210000, while the sum is 42.

The spelling of 64155151572 in words is "sixty-four billion, one hundred fifty-five million, one hundred fifty-one thousand, five hundred seventy-two".