13166100512641 has 2 divisors, whose sum is σ = 13166100512642. Its totient is φ = 13166100512640.

The previous prime is 13166100512611. The next prime is 13166100512723. The reversal of 13166100512641 is 14621500166131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10491632768241 + 2674467744400 = 3239079^2 + 1635380^2 .

It is a cyclic number.

It is not a de Polignac number, because 13166100512641 - 2²⁷ = 13165966294913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13166100512641.

It is not a weakly prime, because it can be changed into another prime (13166100512611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6583050256320 + 6583050256321.

It is an arithmetic number, because the mean of its divisors is an integer number (6583050256321).

Almost surely, 2^{13166100512641} is an apocalyptic number.

It is an amenable number.

13166100512641 is a deficient number, since it is larger than the sum of its proper divisors (1).

13166100512641 is an equidigital number, since it uses as much as digits as its factorization.

13166100512641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

Adding to 13166100512641 its reverse (14621500166131), we get a palindrome (27787600678772).

The spelling of 13166100512641 in words is "thirteen trillion, one hundred sixty-six billion, one hundred million, five hundred twelve thousand, six hundred forty-one".