15105422100 has 72 divisors (see below), whose sum is σ = 43886579968. Its totient is φ = 4011379200.

The previous prime is 15105422051. The next prime is 15105422119. The reversal of 15105422100 is 122450151.

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, 32164 + ... + 176763.

Almost surely, 2^15105422100 is an apocalyptic number.

15105422100 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 15105422100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21943289984).

15105422100 is an abundant number, since it is smaller than the sum of its proper divisors (28781157868).

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

15105422100 is a wasteful number, since it uses less digits than its factorization.

15105422100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209185 (or 209178 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 15105422100 its reverse (122450151), we get a palindrome (15227872251).

The spelling of 15105422100 in words is "fifteen billion, one hundred five million, four hundred twenty-two thousand, one hundred".