100661624385231 has 64 divisors (see below), whose sum is σ = 166090890018816. Its totient is φ = 52806251721600.

The previous prime is 100661624385221. The next prime is 100661624385239. The reversal of 100661624385231 is 132583426166001.

It is not a de Polignac number, because 100661624385231 - 2³⁴ = 100644444516047 is a prime.

It is a super-2 number, since 2×100661624385231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100661624385239) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 231662866 + ... + 232096976.

It is an arithmetic number, because the mean of its divisors is an integer number (2595170156544).

Almost surely, 2^{100661624385231} is an apocalyptic number.

100661624385231 is a deficient number, since it is larger than the sum of its proper divisors (65429265633585).

100661624385231 is a wasteful number, since it uses less digits than its factorization.

100661624385231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438772.

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 100661624385231 in words is "one hundred trillion, six hundred sixty-one billion, six hundred twenty-four million, three hundred eighty-five thousand, two hundred thirty-one".