655515464 has 16 divisors (see below), whose sum is σ = 1230197100. Its totient is φ = 327462912.

The previous prime is 655515457. The next prime is 655515481. The reversal of 655515464 is 464515556.

It can be written as a sum of positive squares in 2 ways, for example, as 508863364 + 146652100 = 22558^2 + 12110^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27257 + ... + 45320.

Almost surely, 2^655515464 is an apocalyptic number.

It is an amenable number.

655515464 is a deficient number, since it is larger than the sum of its proper divisors (574681636).

655515464 is a wasteful number, since it uses less digits than its factorization.

655515464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73712 (or 73708 counting only the distinct ones).

The product of its digits is 360000, while the sum is 41.

The square root of 655515464 is about 25603.0362261979. The cubic root of 655515464 is about 868.6823158352.

The spelling of 655515464 in words is "six hundred fifty-five million, five hundred fifteen thousand, four hundred sixty-four".