116637642571 has 2 divisors, whose sum is σ = 116637642572. Its totient is φ = 116637642570.

The previous prime is 116637642533. The next prime is 116637642587. The reversal of 116637642571 is 175246736611.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (175246736611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 116637642571 - 2⁹ = 116637642059 is a prime.

It is not a weakly prime, because it can be changed into another prime (116637642271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58318821285 + 58318821286.

It is an arithmetic number, because the mean of its divisors is an integer number (58318821286).

Almost surely, 2^116637642571 is an apocalyptic number.

116637642571 is a deficient number, since it is larger than the sum of its proper divisors (1).

116637642571 is an equidigital number, since it uses as much as digits as its factorization.

116637642571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 49.

The spelling of 116637642571 in words is "one hundred sixteen billion, six hundred thirty-seven million, six hundred forty-two thousand, five hundred seventy-one".