520161121315 has 16 divisors (see below), whose sum is σ = 683651114496. Its totient is φ = 376791820000.

The previous prime is 520161121303. The next prime is 520161121343. The reversal of 520161121315 is 513121161025.

It is not a de Polignac number, because 520161121315 - 2¹³ = 520161113123 is a prime.

It is a Duffinian 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, 18825787 + ... + 18853396.

It is an arithmetic number, because the mean of its divisors is an integer number (42728194656).

Almost surely, 2^520161121315 is an apocalyptic number.

520161121315 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

520161121315 is a deficient number, since it is larger than the sum of its proper divisors (163489993181).

520161121315 is a wasteful number, since it uses less digits than its factorization.

520161121315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37679450.

The product of its (nonzero) digits is 1800, while the sum is 28.

The spelling of 520161121315 in words is "five hundred twenty billion, one hundred sixty-one million, one hundred twenty-one thousand, three hundred fifteen".