155120050135 has 16 divisors (see below), whose sum is σ = 202261800960. Its totient is φ = 113772258720.

The previous prime is 155120050123. The next prime is 155120050177. The reversal of 155120050135 is 531050021551.

It is a de Polignac number, because none of the positive numbers 2^k-155120050135 is a prime.

It is a congruent number.

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, 26333227 + ... + 26339116.

It is an arithmetic number, because the mean of its divisors is an integer number (12641362560).

Almost surely, 2^155120050135 is an apocalyptic number.

155120050135 is a deficient number, since it is larger than the sum of its proper divisors (47141750825).

155120050135 is a wasteful number, since it uses less digits than its factorization.

155120050135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52672398.

The product of its (nonzero) digits is 3750, while the sum is 28.

Adding to 155120050135 its reverse (531050021551), we get a palindrome (686170071686).

The spelling of 155120050135 in words is "one hundred fifty-five billion, one hundred twenty million, fifty thousand, one hundred thirty-five".