13151661577 has 2 divisors, whose sum is σ = 13151661578. Its totient is φ = 13151661576.

The previous prime is 13151661569. The next prime is 13151661583. The reversal of 13151661577 is 77516615131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7371252736 + 5780408841 = 85856^2 + 76029^2 .

It is a cyclic number.

It is not a de Polignac number, because 13151661577 - 2³ = 13151661569 is a prime.

It is not a weakly prime, because it can be changed into another prime (13151661587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6575830788 + 6575830789.

It is an arithmetic number, because the mean of its divisors is an integer number (6575830789).

Almost surely, 2^13151661577 is an apocalyptic number.

It is an amenable number.

13151661577 is a deficient number, since it is larger than the sum of its proper divisors (1).

13151661577 is an equidigital number, since it uses as much as digits as its factorization.

13151661577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 132300, while the sum is 43.

The spelling of 13151661577 in words is "thirteen billion, one hundred fifty-one million, six hundred sixty-one thousand, five hundred seventy-seven".