656099480 has 32 divisors (see below), whose sum is σ = 1527130800. Its totient is φ = 253389696.

The previous prime is 656099471. The next prime is 656099491. The reversal of 656099480 is 84990656.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281642 + ... + 283961.

Almost surely, 2^656099480 is an apocalyptic number.

It is an amenable number.

656099480 is an abundant number, since it is smaller than the sum of its proper divisors (871031320).

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

656099480 is a wasteful number, since it uses less digits than its factorization.

656099480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565643 (or 565639 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 656099480 is about 25614.4388968410. The cubic root of 656099480 is about 868.9402165819.

The spelling of 656099480 in words is "six hundred fifty-six million, ninety-nine thousand, four hundred eighty".