3156522041556 has 144 divisors (see below), whose sum is σ = 8773904739600. Its totient is φ = 950841815040.

The previous prime is 3156522041509. The next prime is 3156522041611. The reversal of 3156522041556 is 6551402256513.

3156522041556 is a `hidden beast` number, since 3 + 1 + 5 + 6 + 5 + 220 + 415 + 5 + 6 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 879187522500 + 2277334519056 = 937650^2 + 1509084^2 .

It is a super-2 number, since 2×3156522041556² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11296620 + ... + 11572668.

It is an arithmetic number, because the mean of its divisors is an integer number (60929894025).

Almost surely, 2^{3156522041556} is an apocalyptic number.

3156522041556 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3156522041556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4386952369800).

3156522041556 is an abundant number, since it is smaller than the sum of its proper divisors (5617382698044).

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

3156522041556 is a wasteful number, since it uses less digits than its factorization.

3156522041556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276586 (or 276581 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 3156522041556 in words is "three trillion, one hundred fifty-six billion, five hundred twenty-two million, forty-one thousand, five hundred fifty-six".