2559642158444 has 12 divisors (see below), whose sum is σ = 5119284316944. Its totient is φ = 1096989496464.

The previous prime is 2559642158443. The next prime is 2559642158461. The reversal of 2559642158444 is 4448512469552.

It is a happy number.

2559642158444 is an admirable number.

It is a super-2 number, since 2×2559642158444² (a number of 26 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2559642158443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45707895659 + ... + 45707895714.

It is an arithmetic number, because the mean of its divisors is an integer number (426607026412).

Almost surely, 2^{2559642158444} is an apocalyptic number.

It is an amenable number.

2559642158444 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.

2559642158444 is a wasteful number, since it uses less digits than its factorization.

2559642158444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91415791384 (or 91415791382 counting only the distinct ones).

The product of its digits is 55296000, while the sum is 59.

The spelling of 2559642158444 in words is "two trillion, five hundred fifty-nine billion, six hundred forty-two million, one hundred fifty-eight thousand, four hundred forty-four".