15550516100100 has 36 divisors (see below), whose sum is σ = 44992826583824. Its totient is φ = 4146804293280.

The previous prime is 15550516100081. The next prime is 15550516100123. The reversal of 15550516100100 is 100161505551.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 25917526534 + ... + 25917527133.

Almost surely, 2^{15550516100100} is an apocalyptic number.

15550516100100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15550516100100 is an abundant number, since it is smaller than the sum of its proper divisors (29442310483724).

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

15550516100100 is a wasteful number, since it uses less digits than its factorization.

15550516100100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51835053684 (or 51835053677 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 30.

Adding to 15550516100100 its reverse (100161505551), we get a palindrome (15650677605651).

The spelling of 15550516100100 in words is "fifteen trillion, five hundred fifty billion, five hundred sixteen million, one hundred thousand, one hundred".