100660565566550 has 72 divisors (see below), whose sum is σ = 207107592213648. Its totient is φ = 36370696190400.

The previous prime is 100660565566513. The next prime is 100660565566597. The reversal of 100660565566550 is 55665565066001.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 52037762 + ... + 53937461.

Almost surely, 2^{100660565566550} is an apocalyptic number.

100660565566550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100660565566550 is an abundant number, since it is smaller than the sum of its proper divisors (106447026647098).

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

100660565566550 is a wasteful number, since it uses less digits than its factorization.

100660565566550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105975414 (or 105975398 counting only the distinct ones).

The product of its (nonzero) digits is 24300000, while the sum is 56.

The spelling of 100660565566550 in words is "one hundred trillion, six hundred sixty billion, five hundred sixty-five million, five hundred sixty-six thousand, five hundred fifty".