2522645651663 has 4 divisors (see below), whose sum is σ = 2533113061248. Its totient is φ = 2512178242080.

The previous prime is 2522645651623. The next prime is 2522645651683. The reversal of 2522645651663 is 3661565462252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2522645651663 - 2³⁰ = 2521571909839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2522645651623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5233704431 + ... + 5233704912.

It is an arithmetic number, because the mean of its divisors is an integer number (633278265312).

Almost surely, 2^{2522645651663} is an apocalyptic number.

2522645651663 is a deficient number, since it is larger than the sum of its proper divisors (10467409585).

2522645651663 is a wasteful number, since it uses less digits than its factorization.

2522645651663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10467409584.

The product of its digits is 15552000, while the sum is 53.

The spelling of 2522645651663 in words is "two trillion, five hundred twenty-two billion, six hundred forty-five million, six hundred fifty-one thousand, six hundred sixty-three".