100642665634 has 64 divisors (see below), whose sum is σ = 189307964160. Its totient is φ = 39127173120.

The previous prime is 100642665623. The next prime is 100642665653. The reversal of 100642665634 is 436566246001.

It is a super-2 number, since 2×100642665634² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4039054 + ... + 4063894.

It is an arithmetic number, because the mean of its divisors is an integer number (2957936940).

Almost surely, 2^100642665634 is an apocalyptic number.

100642665634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

100642665634 is a deficient number, since it is larger than the sum of its proper divisors (88665298526).

100642665634 is a wasteful number, since it uses less digits than its factorization.

100642665634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25483.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 100642665634 in words is "one hundred billion, six hundred forty-two million, six hundred sixty-five thousand, six hundred thirty-four".