116131206501 has 12 divisors (see below), whose sum is σ = 169474408012. Its totient is φ = 76622651136.

The previous prime is 116131206479. The next prime is 116131206511. The reversal of 116131206501 is 105602131611.

116131206501 is a `hidden beast` number, since 1 + 1 + 6 + 1 + 3 + 1 + 2 + 0 + 650 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 31595062500 + 84536144001 = 177750^2 + 290751^2 .

It is not a de Polignac number, because 116131206501 - 2⁹ = 116131205989 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 (116131206511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66511846 + ... + 66513591.

Almost surely, 2^116131206501 is an apocalyptic number.

It is an amenable number.

116131206501 is a deficient number, since it is larger than the sum of its proper divisors (53343201511).

116131206501 is a wasteful number, since it uses less digits than its factorization.

116131206501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133025540 (or 133025537 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The spelling of 116131206501 in words is "one hundred sixteen billion, one hundred thirty-one million, two hundred six thousand, five hundred one".