100971639520 has 48 divisors (see below), whose sum is σ = 238637916720. Its totient is φ = 40373008384.

The previous prime is 100971639499. The next prime is 100971639521. The reversal of 100971639520 is 25936179001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100971639521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296499 + ... + 538381.

It is an arithmetic number, because the mean of its divisors is an integer number (4971623265).

Almost surely, 2^100971639520 is an apocalyptic number.

100971639520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100971639520 is an abundant number, since it is smaller than the sum of its proper divisors (137666277200).

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

100971639520 is a wasteful number, since it uses less digits than its factorization.

100971639520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244507 (or 244499 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 43.

The spelling of 100971639520 in words is "one hundred billion, nine hundred seventy-one million, six hundred thirty-nine thousand, five hundred twenty".