520120140101155 has 64 divisors (see below), whose sum is σ = 705147398879616. Its totient is φ = 368003243520000.

The previous prime is 520120140101123. The next prime is 520120140101161. The reversal of 520120140101155 is 551101041021025.

It is not a de Polignac number, because 520120140101155 - 2⁵ = 520120140101123 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2216243899 + ... + 2216478571.

It is an arithmetic number, because the mean of its divisors is an integer number (11017928107494).

Almost surely, 2^{520120140101155} is an apocalyptic number.

520120140101155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

520120140101155 is a deficient number, since it is larger than the sum of its proper divisors (185027258778461).

520120140101155 is a wasteful number, since it uses less digits than its factorization.

520120140101155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243749 (or 243727 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 28.

The spelling of 520120140101155 in words is "five hundred twenty trillion, one hundred twenty billion, one hundred forty million, one hundred one thousand, one hundred fifty-five".