64155612 has 24 divisors (see below), whose sum is σ = 151749136. Its totient is φ = 21091968.

The previous prime is 64155607. The next prime is 64155629. The reversal of 64155612 is 21655146.

It is a self number, because there is not a number n which added to its sum of digits gives 64155612.

It is a congruent number.

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, 35743 + ... + 37494.

Almost surely, 2^64155612 is an apocalyptic number.

It is an amenable number.

64155612 is an abundant number, since it is smaller than the sum of its proper divisors (87593524).

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

64155612 is a wasteful number, since it uses less digits than its factorization.

64155612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73317 (or 73315 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 64155612 is about 8009.7198452880. The cubic root of 64155612 is about 400.3239292704.

The spelling of 64155612 in words is "sixty-four million, one hundred fifty-five thousand, six hundred twelve".