11662815377 has 2 divisors, whose sum is σ = 11662815378. Its totient is φ = 11662815376.

The previous prime is 11662815331. The next prime is 11662815389. The reversal of 11662815377 is 77351826611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9971220736 + 1691594641 = 99856^2 + 41129^2 .

It is a cyclic number.

It is not a de Polignac number, because 11662815377 - 2⁶ = 11662815313 is a prime.

It is not a weakly prime, because it can be changed into another prime (11662815397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5831407688 + 5831407689.

It is an arithmetic number, because the mean of its divisors is an integer number (5831407689).

Almost surely, 2^11662815377 is an apocalyptic number.

It is an amenable number.

11662815377 is a deficient number, since it is larger than the sum of its proper divisors (1).

11662815377 is an equidigital number, since it uses as much as digits as its factorization.

11662815377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 47.

The spelling of 11662815377 in words is "eleven billion, six hundred sixty-two million, eight hundred fifteen thousand, three hundred seventy-seven".