116561716507 has 4 divisors (see below), whose sum is σ = 118203430896. Its totient is φ = 114920002120.

The previous prime is 116561716493. The next prime is 116561716517. The reversal of 116561716507 is 705617165611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 116561716507 - 2¹⁹ = 116561192219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116561716517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 820857088 + ... + 820857229.

It is an arithmetic number, because the mean of its divisors is an integer number (29550857724).

Almost surely, 2^116561716507 is an apocalyptic number.

116561716507 is a deficient number, since it is larger than the sum of its proper divisors (1641714389).

116561716507 is an equidigital number, since it uses as much as digits as its factorization.

116561716507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641714388.

The product of its (nonzero) digits is 264600, while the sum is 46.

The spelling of 116561716507 in words is "one hundred sixteen billion, five hundred sixty-one million, seven hundred sixteen thousand, five hundred seven".