116781097386357 has 24 divisors (see below), whose sum is σ = 174508277837400. Its totient is φ = 75166087385088.

The previous prime is 116781097386287. The next prime is 116781097386367. The reversal of 116781097386357 is 753683790187611.

116781097386357 is a `hidden beast` number, since 1 + 167 + 8 + 109 + 7 + 3 + 8 + 6 + 357 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 70264864467396 + 46516232918961 = 8382414^2 + 6820281^2 .

It is not a de Polignac number, because 116781097386357 - 2²⁰ = 116781096337781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116781097386367) 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, 4117732 + ... + 15827757.

It is an arithmetic number, because the mean of its divisors is an integer number (7271178243225).

Almost surely, 2^{116781097386357} is an apocalyptic number.

It is an amenable number.

116781097386357 is a deficient number, since it is larger than the sum of its proper divisors (57727180451043).

116781097386357 is a wasteful number, since it uses less digits than its factorization.

116781097386357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19967957 (or 19967954 counting only the distinct ones).

The product of its (nonzero) digits is 320060160, while the sum is 72.

The spelling of 116781097386357 in words is "one hundred sixteen trillion, seven hundred eighty-one billion, ninety-seven million, three hundred eighty-six thousand, three hundred fifty-seven".