3161456536 has 128 divisors (see below), whose sum is σ = 7312757760. Its totient is φ = 1251993600.

The previous prime is 3161456503. The next prime is 3161456537. The reversal of 3161456536 is 6356541613.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3161456537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6917620 + ... + 6918076.

It is an arithmetic number, because the mean of its divisors is an integer number (57130920).

Almost surely, 2^3161456536 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 3161456536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3656378880).

3161456536 is an abundant number, since it is smaller than the sum of its proper divisors (4151301224).

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

3161456536 is a wasteful number, since it uses less digits than its factorization.

3161456536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 661 counting only the distinct ones).

The product of its digits is 194400, while the sum is 40.

The square root of 3161456536 is about 56226.8311040201. The cubic root of 3161456536 is about 1467.6722125986.

The spelling of 3161456536 in words is "three billion, one hundred sixty-one million, four hundred fifty-six thousand, five hundred thirty-six".