155516506505060 has 48 divisors (see below), whose sum is σ = 345672630488640. Its totient is φ = 58606976545920.

The previous prime is 155516506504967. The next prime is 155516506505081. The reversal of 155516506505060 is 60505605615551.

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, 1130467034 + ... + 1130604593.

It is an arithmetic number, because the mean of its divisors is an integer number (7201513135180).

Almost surely, 2^{155516506505060} is an apocalyptic number.

155516506505060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155516506505060 is an abundant number, since it is smaller than the sum of its proper divisors (190156123983580).

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

155516506505060 is a wasteful number, since it uses less digits than its factorization.

155516506505060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261071836 (or 2261071834 counting only the distinct ones).

The product of its (nonzero) digits is 3375000, while the sum is 50.

The spelling of 155516506505060 in words is "one hundred fifty-five trillion, five hundred sixteen billion, five hundred six million, five hundred five thousand, sixty".