116618817397 has 8 divisors (see below), whose sum is σ = 117230924216. Its totient is φ = 116008085952.

The previous prime is 116618817391. The next prime is 116618817401. The reversal of 116618817397 is 793718816611.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19280433316 + 97338384081 = 138854^2 + 311991^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 116618817397 - 2³⁵ = 82259079029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116618817391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173598 + ... + 513199.

It is an arithmetic number, because the mean of its divisors is an integer number (14653865527).

Almost surely, 2^116618817397 is an apocalyptic number.

It is an amenable number.

116618817397 is a deficient number, since it is larger than the sum of its proper divisors (612106819).

116618817397 is an equidigital number, since it uses as much as digits as its factorization.

116618817397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687687.

The product of its digits is 3048192, while the sum is 58.

The spelling of 116618817397 in words is "one hundred sixteen billion, six hundred eighteen million, eight hundred seventeen thousand, three hundred ninety-seven".