2645752455663 has 8 divisors (see below), whose sum is σ = 3531508540800. Its totient is φ = 1761915670488.

The previous prime is 2645752455587. The next prime is 2645752455683. The reversal of 2645752455663 is 3665542575462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2645752455663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2645752455597 and 2645752455606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2645752455683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479821773 + ... + 479827286.

It is an arithmetic number, because the mean of its divisors is an integer number (441438567600).

Almost surely, 2^{2645752455663} is an apocalyptic number.

2645752455663 is a deficient number, since it is larger than the sum of its proper divisors (885756085137).

2645752455663 is an equidigital number, since it uses as much as digits as its factorization.

2645752455663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959649981.

The product of its digits is 181440000, while the sum is 60.

The spelling of 2645752455663 in words is "two trillion, six hundred forty-five billion, seven hundred fifty-two million, four hundred fifty-five thousand, six hundred sixty-three".