100100011550 has 48 divisors (see below), whose sum is σ = 232128035712. Its totient is φ = 31200002400.

The previous prime is 100100011549. The next prime is 100100011601. The reversal of 100100011550 is 55110001001.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12996152 + ... + 13003851.

It is an arithmetic number, because the mean of its divisors is an integer number (4836000744).

Almost surely, 2^100100011550 is an apocalyptic number.

100100011550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100100011550 is an abundant number, since it is smaller than the sum of its proper divisors (132028024162).

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

100100011550 is a wasteful number, since it uses less digits than its factorization.

100100011550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26000033 (or 26000028 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 14.

Adding to 100100011550 its reverse (55110001001), we get a palindrome (155210012551).

The spelling of 100100011550 in words is "one hundred billion, one hundred million, eleven thousand, five hundred fifty".