13772216057 has 2 divisors, whose sum is σ = 13772216058. Its totient is φ = 13772216056.

The previous prime is 13772216009. The next prime is 13772216077. The reversal of 13772216057 is 75061227731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10613326441 + 3158889616 = 103021^2 + 56204^2 .

It is a cyclic number.

It is not a de Polignac number, because 13772216057 - 2⁸ = 13772215801 is a prime.

It is not a weakly prime, because it can be changed into another prime (13772216077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6886108028 + 6886108029.

It is an arithmetic number, because the mean of its divisors is an integer number (6886108029).

Almost surely, 2^13772216057 is an apocalyptic number.

It is an amenable number.

13772216057 is a deficient number, since it is larger than the sum of its proper divisors (1).

13772216057 is an equidigital number, since it uses as much as digits as its factorization.

13772216057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 123480, while the sum is 41.

The spelling of 13772216057 in words is "thirteen billion, seven hundred seventy-two million, two hundred sixteen thousand, fifty-seven".