116561615551151 has 2 divisors, whose sum is σ = 116561615551152. Its totient is φ = 116561615551150.

The previous prime is 116561615551133. The next prime is 116561615551231. The reversal of 116561615551151 is 151155516165611.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116561615551151 is a prime.

It is a super-2 number, since 2×116561615551151² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 116561615551151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116561615551651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58280807775575 + 58280807775576.

It is an arithmetic number, because the mean of its divisors is an integer number (58280807775576).

Almost surely, 2^{116561615551151} is an apocalyptic number.

116561615551151 is a deficient number, since it is larger than the sum of its proper divisors (1).

116561615551151 is an equidigital number, since it uses as much as digits as its factorization.

116561615551151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 675000, while the sum is 50.

The spelling of 116561615551151 in words is "one hundred sixteen trillion, five hundred sixty-one billion, six hundred fifteen million, five hundred fifty-one thousand, one hundred fifty-one".