655946604 has 36 divisors (see below), whose sum is σ = 1659807240. Its totient is φ = 218422080.

The previous prime is 655946597. The next prime is 655946611. The reversal of 655946604 is 406649556.

It is an interprime number because it is at equal distance from previous prime (655946597) and next prime (655946611).

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 655946604.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27744 + ... + 45624.

Almost surely, 2^655946604 is an apocalyptic number.

It is an amenable number.

655946604 is an abundant number, since it is smaller than the sum of its proper divisors (1003860636).

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

655946604 is a wasteful number, since it uses less digits than its factorization.

655946604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18910 (or 18905 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The square root of 655946604 is about 25611.4545467453. The cubic root of 655946604 is about 868.8727215208.

The spelling of 655946604 in words is "six hundred fifty-five million, nine hundred forty-six thousand, six hundred four".