2455746557561 has 16 divisors (see below), whose sum is σ = 2831795251200. Its totient is φ = 2106147632400.

The previous prime is 2455746557527. The next prime is 2455746557567. The reversal of 2455746557561 is 1657556475542.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2455746557561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2455746557494 and 2455746557503.

It is not an unprimeable number, because it can be changed into a prime (2455746557567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24531605 + ... + 24631506.

It is an arithmetic number, because the mean of its divisors is an integer number (176987203200).

Almost surely, 2^{2455746557561} is an apocalyptic number.

It is an amenable number.

2455746557561 is a deficient number, since it is larger than the sum of its proper divisors (376048693639).

2455746557561 is a wasteful number, since it uses less digits than its factorization.

2455746557561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49163380.

The product of its digits is 176400000, while the sum is 62.

The spelling of 2455746557561 in words is "two trillion, four hundred fifty-five billion, seven hundred forty-six million, five hundred fifty-seven thousand, five hundred sixty-one".