100536661868 has 12 divisors (see below), whose sum is σ = 175944670440. Its totient is φ = 50266756032.

The previous prime is 100536661861. The next prime is 100536661903. The reversal of 100536661868 is 868166635001.

It is not an unprimeable number, because it can be changed into a prime (100536661861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243746 + ... + 510377.

It is an arithmetic number, because the mean of its divisors is an integer number (14662055870).

Almost surely, 2^100536661868 is an apocalyptic number.

It is an amenable number.

100536661868 is a deficient number, since it is larger than the sum of its proper divisors (75408008572).

100536661868 is a wasteful number, since it uses less digits than its factorization.

100536661868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787456 (or 787454 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 100536661868 in words is "one hundred billion, five hundred thirty-six million, six hundred sixty-one thousand, eight hundred sixty-eight".