2565106945494 has 8 divisors (see below), whose sum is σ = 5130213891000. Its totient is φ = 855035648496.

The previous prime is 2565106945469. The next prime is 2565106945537. The reversal of 2565106945494 is 4945496015652.

It is a happy number.

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

2565106945494 is an admirable number.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213758912119 + ... + 213758912130.

It is an arithmetic number, because the mean of its divisors is an integer number (641276736375).

Almost surely, 2^{2565106945494} is an apocalyptic number.

2565106945494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2565106945494 is a wasteful number, since it uses less digits than its factorization.

2565106945494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427517824254.

The product of its (nonzero) digits is 46656000, while the sum is 60.

The spelling of 2565106945494 in words is "two trillion, five hundred sixty-five billion, one hundred six million, nine hundred forty-five thousand, four hundred ninety-four".