56651000100 has 72 divisors (see below), whose sum is σ = 164036771808. Its totient is φ = 15095270400.

The previous prime is 56651000071. The next prime is 56651000111. The reversal of 56651000100 is 100015665.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 319860 + ... + 464340.

Almost surely, 2^56651000100 is an apocalyptic number.

56651000100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56651000100 is an abundant number, since it is smaller than the sum of its proper divisors (107385771708).

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

56651000100 is a wasteful number, since it uses less digits than its factorization.

56651000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145805 (or 145798 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 56651000100 its reverse (100015665), we get a palindrome (56751015765).

It can be divided in two parts, 56 and 651000100, that added together give a palindrome (651000156).

The spelling of 56651000100 in words is "fifty-six billion, six hundred fifty-one million, one hundred", and thus it is an aban number.