101515165500 has 96 divisors (see below), whose sum is σ = 337842505728. Its totient is φ = 23203464000.

The previous prime is 101515165459. The next prime is 101515165511. The reversal of 101515165500 is 5561515101.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4823556 + ... + 4844555.

It is an arithmetic number, because the mean of its divisors is an integer number (3519192768).

Almost surely, 2^101515165500 is an apocalyptic number.

101515165500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101515165500 is an abundant number, since it is smaller than the sum of its proper divisors (236327340228).

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

101515165500 is a wasteful number, since it uses less digits than its factorization.

101515165500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9668140 (or 9668128 counting only the distinct ones).

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

The spelling of 101515165500 in words is "one hundred one billion, five hundred fifteen million, one hundred sixty-five thousand, five hundred".