155165154320 has 40 divisors (see below), whose sum is σ = 393555257280. Its totient is φ = 56423692160.

The previous prime is 155165154301. The next prime is 155165154359. The reversal of 155165154320 is 23451561551.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88161140 + ... + 88162899.

It is an arithmetic number, because the mean of its divisors is an integer number (9838881432).

Almost surely, 2^155165154320 is an apocalyptic number.

155165154320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155165154320 is an abundant number, since it is smaller than the sum of its proper divisors (238390102960).

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

155165154320 is a wasteful number, since it uses less digits than its factorization.

155165154320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176324063 (or 176324057 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 155165154320 in words is "one hundred fifty-five billion, one hundred sixty-five million, one hundred fifty-four thousand, three hundred twenty".