100642566453 has 32 divisors (see below), whose sum is σ = 159045102720. Its totient is φ = 55805245440.

The previous prime is 100642566433. The next prime is 100642566461. The reversal of 100642566453 is 354665246001.

It is not a de Polignac number, because 100642566453 - 2⁵ = 100642566421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100642566413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 989568 + ... + 1086521.

It is an arithmetic number, because the mean of its divisors is an integer number (4970159460).

Almost surely, 2^100642566453 is an apocalyptic number.

100642566453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

100642566453 is a deficient number, since it is larger than the sum of its proper divisors (58402536267).

100642566453 is a wasteful number, since it uses less digits than its factorization.

100642566453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076229.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 100642566453 in words is "one hundred billion, six hundred forty-two million, five hundred sixty-six thousand, four hundred fifty-three".