656213216002 has 16 divisors (see below), whose sum is σ = 1017017145792. Its totient is φ = 317381886640.

The previous prime is 656213215981. The next prime is 656213216003. The reversal of 656213216002 is 200612312656.

It is not an unprimeable number, because it can be changed into a prime (656213216003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43588888 + ... + 43603939.

It is an arithmetic number, because the mean of its divisors is an integer number (63563571612).

Almost surely, 2^656213216002 is an apocalyptic number.

656213216002 is a deficient number, since it is larger than the sum of its proper divisors (360803929790).

656213216002 is a wasteful number, since it uses less digits than its factorization.

656213216002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87192953.

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 656213216002 its reverse (200612312656), we get a palindrome (856825528658).

The spelling of 656213216002 in words is "six hundred fifty-six billion, two hundred thirteen million, two hundred sixteen thousand, two".