118157796401 has 2 divisors, whose sum is σ = 118157796402. Its totient is φ = 118157796400.

The previous prime is 118157796331. The next prime is 118157796481. The reversal of 118157796401 is 104697751811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80103150625 + 38054645776 = 283025^2 + 195076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118157796401 is a prime.

It is a super-2 number, since 2×118157796401² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 118157796401.

It is not a weakly prime, because it can be changed into another prime (118157796481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59078898200 + 59078898201.

It is an arithmetic number, because the mean of its divisors is an integer number (59078898201).

Almost surely, 2^118157796401 is an apocalyptic number.

It is an amenable number.

118157796401 is a deficient number, since it is larger than the sum of its proper divisors (1).

118157796401 is an equidigital number, since it uses as much as digits as its factorization.

118157796401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 50.

The spelling of 118157796401 in words is "one hundred eighteen billion, one hundred fifty-seven million, seven hundred ninety-six thousand, four hundred one".