656105230000 has 100 divisors (see below), whose sum is σ = 1732905424008. Its totient is φ = 238583680000.

The previous prime is 656105229979. The next prime is 656105230003. The reversal of 656105230000 is 32501656.

It is a tau number, because it is divible by the number of its divisors (100).

It is not an unprimeable number, because it can be changed into a prime (656105230003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2872297 + ... + 3092296.

Almost surely, 2^656105230000 is an apocalyptic number.

It is an amenable number.

656105230000 is an abundant number, since it is smaller than the sum of its proper divisors (1076800194008).

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

656105230000 is a wasteful number, since it uses less digits than its factorization.

656105230000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5964632 (or 5964611 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 656105230000 its reverse (32501656), we get a palindrome (656137731656).

The spelling of 656105230000 in words is "six hundred fifty-six billion, one hundred five million, two hundred thirty thousand".