15550010100 has 72 divisors (see below), whose sum is σ = 49990411520. Its totient is φ = 4146668640.

The previous prime is 15550010083. The next prime is 15550010107. The reversal of 15550010100 is 101005551.

15550010100 is a `hidden beast` number, since 1 + 5 + 550 + 0 + 10 + 100 = 666.

It is a super-2 number, since 2×15550010100² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15550010107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2876932 + ... + 2882331.

Almost surely, 2^15550010100 is an apocalyptic number.

15550010100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15550010100 is an abundant number, since it is smaller than the sum of its proper divisors (34440401420).

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

15550010100 is a wasteful number, since it uses less digits than its factorization.

15550010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5759286 (or 5759273 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

Adding to 15550010100 its reverse (101005551), we get a palindrome (15651015651).

It can be divided in two parts, 155500 and 10100, that added together give a triangular number (165600 = T₅₇₅).

The spelling of 15550010100 in words is "fifteen billion, five hundred fifty million, ten thousand, one hundred".