655515164 has 24 divisors (see below), whose sum is σ = 1156729728. Its totient is φ = 325033200.

The previous prime is 655515163. The next prime is 655515173. The reversal of 655515164 is 461515556.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655515163) 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, 255689 + ... + 258239.

It is an arithmetic number, because the mean of its divisors is an integer number (48197072).

Almost surely, 2^655515164 is an apocalyptic number.

It is an amenable number.

655515164 is a deficient number, since it is larger than the sum of its proper divisors (501214564).

655515164 is a wasteful number, since it uses less digits than its factorization.

655515164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065 (or 3063 counting only the distinct ones).

The product of its digits is 90000, while the sum is 38.

The square root of 655515164 is about 25603.0303675170. The cubic root of 655515164 is about 868.6821833162.

The spelling of 655515164 in words is "six hundred fifty-five million, five hundred fifteen thousand, one hundred sixty-four".