116520121715 has 16 divisors (see below), whose sum is σ = 147880888320. Its totient is φ = 87891441120.

The previous prime is 116520121709. The next prime is 116520121717. The reversal of 116520121715 is 517121025611.

It is not a de Polignac number, because 116520121715 - 2¹² = 116520117619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (116520121717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2886419 + ... + 2926508.

It is an arithmetic number, because the mean of its divisors is an integer number (9242555520).

Almost surely, 2^116520121715 is an apocalyptic number.

116520121715 is a deficient number, since it is larger than the sum of its proper divisors (31360766605).

116520121715 is a wasteful number, since it uses less digits than its factorization.

116520121715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5813162.

The product of its (nonzero) digits is 4200, while the sum is 32.

The spelling of 116520121715 in words is "one hundred sixteen billion, five hundred twenty million, one hundred twenty-one thousand, seven hundred fifteen".