116306534256521 has 24 divisors (see below), whose sum is σ = 135359976856104. Its totient is φ = 99643708846080.

The previous prime is 116306534256509. The next prime is 116306534256581. The reversal of 116306534256521 is 125652435603611.

It can be written as a sum of positive squares in 4 ways, for example, as 1331632913296 + 114974901343225 = 1153964^2 + 10722635^2 .

It is not a de Polignac number, because 116306534256521 - 2¹⁴ = 116306534240137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 116306534256521.

It is not an unprimeable number, because it can be changed into a prime (116306534256581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1216127921 + ... + 1216223553.

It is an arithmetic number, because the mean of its divisors is an integer number (5639999035671).

Almost surely, 2^{116306534256521} is an apocalyptic number.

It is an amenable number.

116306534256521 is a deficient number, since it is larger than the sum of its proper divisors (19053442599583).

116306534256521 is an equidigital number, since it uses as much as digits as its factorization.

116306534256521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107241 (or 107234 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 50.

The spelling of 116306534256521 in words is "one hundred sixteen trillion, three hundred six billion, five hundred thirty-four million, two hundred fifty-six thousand, five hundred twenty-one".