2565624044061 has 32 divisors (see below), whose sum is σ = 4135502376320. Its totient is φ = 1562568786432.

The previous prime is 2565624044057. The next prime is 2565624044101. The reversal of 2565624044061 is 1604404265652.

2565624044061 is a `hidden beast` number, since 2 + 5 + 6 + 562 + 40 + 4 + 40 + 6 + 1 = 666.

It is not a de Polignac number, because 2565624044061 - 2² = 2565624044057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2565624043998 and 2565624044016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565624044761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37643635 + ... + 37711728.

It is an arithmetic number, because the mean of its divisors is an integer number (129234449260).

Almost surely, 2^{2565624044061} is an apocalyptic number.

It is an amenable number.

2565624044061 is a deficient number, since it is larger than the sum of its proper divisors (1569878332259).

2565624044061 is a wasteful number, since it uses less digits than its factorization.

2565624044061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75355482 (or 75355476 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

The spelling of 2565624044061 in words is "two trillion, five hundred sixty-five billion, six hundred twenty-four million, forty-four thousand, sixty-one".