2560420104556 has 6 divisors (see below), whose sum is σ = 4480735182980. Its totient is φ = 1280210052276.

The previous prime is 2560420104523. The next prime is 2560420104577. The reversal of 2560420104556 is 6554010240652.

It is a happy number.

It is a super-2 number, since 2×2560420104556² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320052513066 + ... + 320052513073.

Almost surely, 2^{2560420104556} is an apocalyptic number.

It is an amenable number.

2560420104556 is a deficient number, since it is larger than the sum of its proper divisors (1920315078424).

2560420104556 is a wasteful number, since it uses less digits than its factorization.

2560420104556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640105026143 (or 640105026141 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 2560420104556 in words is "two trillion, five hundred sixty billion, four hundred twenty million, one hundred four thousand, five hundred fifty-six".