656520006 has 16 divisors (see below), whose sum is σ = 1313308224. Its totient is φ = 218795304.

The previous prime is 656519999. The next prime is 656520013. The reversal of 656520006 is 600025656.

It is an interprime number because it is at equal distance from previous prime (656519999) and next prime (656520013).

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, 35905 + ... + 51011.

It is an arithmetic number, because the mean of its divisors is an integer number (82081764).

Almost surely, 2^656520006 is an apocalyptic number.

656520006 is an abundant number, since it is smaller than the sum of its proper divisors (656788218).

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

656520006 is a wasteful number, since it uses less digits than its factorization.

656520006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22355.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 656520006 is about 25622.6463504455. The cubic root of 656520006 is about 869.1258255850.

The spelling of 656520006 in words is "six hundred fifty-six million, five hundred twenty thousand, six".