150220161855 has 96 divisors (see below), whose sum is σ = 275003030016. Its totient is φ = 75708940032.

The previous prime is 150220161823. The next prime is 150220161937. The reversal of 150220161855 is 558161022051.

150220161855 is a `hidden beast` number, since 15 + 0 + 2 + 20 + 1 + 618 + 5 + 5 = 666.

It is not a de Polignac number, because 150220161855 - 2⁵ = 150220161823 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 29183392 + ... + 29188538.

It is an arithmetic number, because the mean of its divisors is an integer number (2864614896).

Almost surely, 2^150220161855 is an apocalyptic number.

150220161855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

150220161855 is a deficient number, since it is larger than the sum of its proper divisors (124782868161).

150220161855 is a wasteful number, since it uses less digits than its factorization.

150220161855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5517 (or 5514 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 36.

The spelling of 150220161855 in words is "one hundred fifty billion, two hundred twenty million, one hundred sixty-one thousand, eight hundred fifty-five".