14445662557 has 2 divisors, whose sum is σ = 14445662558. Its totient is φ = 14445662556.

The previous prime is 14445662549. The next prime is 14445662573. The reversal of 14445662557 is 75526654441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7358379961 + 7087282596 = 85781^2 + 84186^2 .

It is a cyclic number.

It is not a de Polignac number, because 14445662557 - 2³ = 14445662549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14445662557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14445662587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7222831278 + 7222831279.

It is an arithmetic number, because the mean of its divisors is an integer number (7222831279).

Almost surely, 2^14445662557 is an apocalyptic number.

It is an amenable number.

14445662557 is a deficient number, since it is larger than the sum of its proper divisors (1).

14445662557 is an equidigital number, since it uses as much as digits as its factorization.

14445662557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032000, while the sum is 49.

The spelling of 14445662557 in words is "fourteen billion, four hundred forty-five million, six hundred sixty-two thousand, five hundred fifty-seven".