655015612 has 12 divisors (see below), whose sum is σ = 1162422576. Its totient is φ = 322894880.

The previous prime is 655015607. The next prime is 655015667. The reversal of 655015612 is 216510556.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1152913 + ... + 1153480.

It is an arithmetic number, because the mean of its divisors is an integer number (96868548).

Almost surely, 2^655015612 is an apocalyptic number.

It is an amenable number.

655015612 is a deficient number, since it is larger than the sum of its proper divisors (507406964).

655015612 is a wasteful number, since it uses less digits than its factorization.

655015612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306468 (or 2306466 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 655015612 is about 25593.2727879808. The cubic root of 655015612 is about 868.4614601215.

The spelling of 655015612 in words is "six hundred fifty-five million, fifteen thousand, six hundred twelve".