3131566156332 has 144 divisors (see below), whose sum is σ = 8477956730880. Its totient is φ = 1010165219712.

The previous prime is 3131566156253. The next prime is 3131566156343. The reversal of 3131566156332 is 2336516651313.

3131566156332 is a `hidden beast` number, since 3 + 1 + 3 + 1 + 5 + 6 + 6 + 1 + 5 + 633 + 2 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3680773 + ... + 4450979.

It is an arithmetic number, because the mean of its divisors is an integer number (58874699520).

Almost surely, 2^{3131566156332} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3131566156332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4238978365440).

3131566156332 is an abundant number, since it is smaller than the sum of its proper divisors (5346390574548).

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

3131566156332 is a wasteful number, since it uses less digits than its factorization.

3131566156332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770362 (or 770348 counting only the distinct ones).

The product of its digits is 874800, while the sum is 45.

The spelling of 3131566156332 in words is "three trillion, one hundred thirty-one billion, five hundred sixty-six million, one hundred fifty-six thousand, three hundred thirty-two".