655658480 has 40 divisors (see below), whose sum is σ = 1525472304. Its totient is φ = 262080000.

The previous prime is 655658473. The next prime is 655658491. The reversal of 655658480 is 84856556.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

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, 216980 + ... + 219980.

Almost surely, 2^655658480 is an apocalyptic number.

It is an amenable number.

655658480 is an abundant number, since it is smaller than the sum of its proper divisors (869813824).

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

655658480 is a wasteful number, since it uses less digits than its factorization.

655658480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5745 (or 5739 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 47.

The square root of 655658480 is about 25605.8290238766. The cubic root of 655658480 is about 868.7454856829.

The spelling of 655658480 in words is "six hundred fifty-five million, six hundred fifty-eight thousand, four hundred eighty".