3261112556556 has 12 divisors (see below), whose sum is σ = 7609262631992. Its totient is φ = 1087037518848.

The previous prime is 3261112556551. The next prime is 3261112556587. The reversal of 3261112556556 is 6556552111623.

3261112556556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×3261112556556² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3261112556551) 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, 135879689845 + ... + 135879689868.

Almost surely, 2^{3261112556556} is an apocalyptic number.

It is an amenable number.

3261112556556 is an abundant number, since it is smaller than the sum of its proper divisors (4348150075436).

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

3261112556556 is a wasteful number, since it uses less digits than its factorization.

3261112556556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271759379720 (or 271759379718 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 48.

The spelling of 3261112556556 in words is "three trillion, two hundred sixty-one billion, one hundred twelve million, five hundred fifty-six thousand, five hundred fifty-six".