164525615155 has 16 divisors (see below), whose sum is σ = 215387906400. Its totient is φ = 119650037760.

The previous prime is 164525615147. The next prime is 164525615167. The reversal of 164525615155 is 551516525461.

It is not a de Polignac number, because 164525615155 - 2³ = 164525615147 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, 1762291 + ... + 1853299.

It is an arithmetic number, because the mean of its divisors is an integer number (13461744150).

Almost surely, 2^164525615155 is an apocalyptic number.

164525615155 is a deficient number, since it is larger than the sum of its proper divisors (50862291245).

164525615155 is a wasteful number, since it uses less digits than its factorization.

164525615155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123894.

The product of its digits is 900000, while the sum is 46.

The spelling of 164525615155 in words is "one hundred sixty-four billion, five hundred twenty-five million, six hundred fifteen thousand, one hundred fifty-five".