656556060 has 48 divisors (see below), whose sum is σ = 1851798816. Its totient is φ = 173801472.

The previous prime is 656556029. The next prime is 656556067. The reversal of 656556060 is 60655656.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656556067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31717 + ... + 48156.

It is an arithmetic number, because the mean of its divisors is an integer number (38579142).

Almost surely, 2^656556060 is an apocalyptic number.

656556060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

656556060 is an abundant number, since it is smaller than the sum of its proper divisors (1195242756).

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

656556060 is a wasteful number, since it uses less digits than its factorization.

656556060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80022 (or 80020 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 656556060 is about 25623.3498980910. The cubic root of 656556060 is about 869.1417351732.

The spelling of 656556060 in words is "six hundred fifty-six million, five hundred fifty-six thousand, sixty".