155015251355 has 16 divisors (see below), whose sum is σ = 193273084800. Its totient is φ = 119213028480.

The previous prime is 155015251343. The next prime is 155015251361. The reversal of 155015251355 is 553152510551.

It is not a de Polignac number, because 155015251355 - 2⁶ = 155015251291 is a prime.

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, 2301011 + ... + 2367420.

It is an arithmetic number, because the mean of its divisors is an integer number (12079567800).

Almost surely, 2^155015251355 is an apocalyptic number.

155015251355 is a deficient number, since it is larger than the sum of its proper divisors (38257833445).

155015251355 is a wasteful number, since it uses less digits than its factorization.

155015251355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4668694.

The product of its (nonzero) digits is 93750, while the sum is 38.

The spelling of 155015251355 in words is "one hundred fifty-five billion, fifteen million, two hundred fifty-one thousand, three hundred fifty-five".