100451561650 has 24 divisors (see below), whose sum is σ = 203825351664. Its totient is φ = 36527840400.

The previous prime is 100451561621. The next prime is 100451561659. The reversal of 100451561650 is 56165154001.

It is not an unprimeable number, because it can be changed into a prime (100451561659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91319052 + ... + 91320151.

It is an arithmetic number, because the mean of its divisors is an integer number (8492722986).

Almost surely, 2^100451561650 is an apocalyptic number.

100451561650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100451561650 is an abundant number, since it is smaller than the sum of its proper divisors (103373790014).

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

100451561650 is a wasteful number, since it uses less digits than its factorization.

100451561650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182639226 (or 182639221 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 100451561650 in words is "one hundred billion, four hundred fifty-one million, five hundred sixty-one thousand, six hundred fifty".