150115115500 has 48 divisors (see below), whose sum is σ = 374687337024. Its totient is φ = 51468038400.

The previous prime is 150115115443. The next prime is 150115115539. The reversal of 150115115500 is 5511511051.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21441517 + ... + 21448516.

It is an arithmetic number, because the mean of its divisors is an integer number (7805986188).

Almost surely, 2^150115115500 is an apocalyptic number.

150115115500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

150115115500 is an abundant number, since it is smaller than the sum of its proper divisors (224572221524).

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

150115115500 is a wasteful number, since it uses less digits than its factorization.

150115115500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42890059 (or 42890047 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 25.

Adding to 150115115500 its reverse (5511511051), we get a palindrome (155626626551).

The spelling of 150115115500 in words is "one hundred fifty billion, one hundred fifteen million, one hundred fifteen thousand, five hundred".