100639550580 has 96 divisors (see below), whose sum is σ = 285942800640. Its totient is φ = 26444206080.

The previous prime is 100639550567. The next prime is 100639550587. The reversal of 100639550580 is 85055936001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100639550587) 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, 1295025 + ... + 1370535.

It is an arithmetic number, because the mean of its divisors is an integer number (2978570840).

Almost surely, 2^100639550580 is an apocalyptic number.

100639550580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100639550580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142971400320).

100639550580 is an abundant number, since it is smaller than the sum of its proper divisors (185303250060).

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

100639550580 is a wasteful number, since it uses less digits than its factorization.

100639550580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75849 (or 75847 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 100639550580 in words is "one hundred billion, six hundred thirty-nine million, five hundred fifty thousand, five hundred eighty".