100640063556 has 36 divisors (see below), whose sum is σ = 259808395392. Its totient is φ = 32832927984.

The previous prime is 100640063543. The next prime is 100640063561. The reversal of 100640063556 is 655360046001.

100640063556 is a `hidden beast` number, since 1 + 0 + 0 + 6 + 40 + 0 + 63 + 556 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 100640063556.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29738280 + ... + 29741663.

It is an arithmetic number, because the mean of its divisors is an integer number (7216899872).

Almost surely, 2^100640063556 is an apocalyptic number.

It is an amenable number.

100640063556 is an abundant number, since it is smaller than the sum of its proper divisors (159168331836).

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

100640063556 is a wasteful number, since it uses less digits than its factorization.

100640063556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59480000 (or 59479995 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 100640063556 in words is "one hundred billion, six hundred forty million, sixty-three thousand, five hundred fifty-six".