2456666559642 has 64 divisors (see below), whose sum is σ = 5226487732224. Its totient is φ = 767144958720.

The previous prime is 2456666559637. The next prime is 2456666559653. The reversal of 2456666559642 is 2469556666542.

It is a happy number.

It is a super-3 number, since 3×2456666559642³ (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128055183 + ... + 128074365.

It is an arithmetic number, because the mean of its divisors is an integer number (81663870816).

Almost surely, 2^{2456666559642} is an apocalyptic number.

2456666559642 is an abundant number, since it is smaller than the sum of its proper divisors (2769821172582).

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

2456666559642 is a wasteful number, since it uses less digits than its factorization.

2456666559642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24963.

The product of its digits is 559872000, while the sum is 66.

The spelling of 2456666559642 in words is "two trillion, four hundred fifty-six billion, six hundred sixty-six million, five hundred fifty-nine thousand, six hundred forty-two".