100550000550 has 24 divisors (see below), whose sum is σ = 249364001736. Its totient is φ = 26813333440.

The previous prime is 100550000549. The next prime is 100550000569. The reversal of 100550000550 is 55000055001.

It is a super-2 number, since 2×100550000550² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 335166519 + ... + 335166818.

It is an arithmetic number, because the mean of its divisors is an integer number (10390166739).

Almost surely, 2^100550000550 is an apocalyptic number.

100550000550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100550000550 is an abundant number, since it is smaller than the sum of its proper divisors (148814001186).

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

100550000550 is a wasteful number, since it uses less digits than its factorization.

100550000550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670333352 (or 670333347 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 21.

Adding to 100550000550 its reverse (55000055001), we get a palindrome (155550055551).

The spelling of 100550000550 in words is "one hundred billion, five hundred fifty million, five hundred fifty", and thus it is an aban number.