100656511655 has 16 divisors (see below), whose sum is σ = 142803328320. Its totient is φ = 66641551872.

The previous prime is 100656511651. The next prime is 100656511673. The reversal of 100656511655 is 556115656001.

It is not a de Polignac number, because 100656511655 - 2² = 100656511651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100656511651) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 49583474 + ... + 49585503.

It is an arithmetic number, because the mean of its divisors is an integer number (8925208020).

Almost surely, 2^100656511655 is an apocalyptic number.

100656511655 is a deficient number, since it is larger than the sum of its proper divisors (42146816665).

100656511655 is an equidigital number, since it uses as much as digits as its factorization.

100656511655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99169018.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 100656511655 in words is "one hundred billion, six hundred fifty-six million, five hundred eleven thousand, six hundred fifty-five".