2556705016626 has 32 divisors (see below), whose sum is σ = 5144381988480. Its totient is φ = 847073713536.

The previous prime is 2556705016609. The next prime is 2556705016627. The reversal of 2556705016626 is 6266105076552.

It is not an unprimeable number, because it can be changed into a prime (2556705016627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16009660 + ... + 16168568.

It is an arithmetic number, because the mean of its divisors is an integer number (160761937140).

Almost surely, 2^{2556705016626} is an apocalyptic number.

2556705016626 is an abundant number, since it is smaller than the sum of its proper divisors (2587676971854).

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

2556705016626 is a wasteful number, since it uses less digits than its factorization.

2556705016626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175138.

The product of its (nonzero) digits is 4536000, while the sum is 51.

The spelling of 2556705016626 in words is "two trillion, five hundred fifty-six billion, seven hundred five million, sixteen thousand, six hundred twenty-six".