3161046636 has 72 divisors (see below), whose sum is σ = 8728246800. Its totient is φ = 956638080.

The previous prime is 3161046611. The next prime is 3161046673. The reversal of 3161046636 is 6366401613.

3161046636 is a `hidden beast` number, since 3 + 1 + 6 + 10 + 4 + 6 + 636 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 3161046636.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 323470 + ... + 333098.

It is an arithmetic number, because the mean of its divisors is an integer number (121225650).

Almost surely, 2^3161046636 is an apocalyptic number.

3161046636 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 3161046636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4364123400).

3161046636 is an abundant number, since it is smaller than the sum of its proper divisors (5567200164).

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

3161046636 is a wasteful number, since it uses less digits than its factorization.

3161046636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10479 (or 10474 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 3161046636 is about 56223.1859289386. The cubic root of 3161046636 is about 1467.6087793008.

The spelling of 3161046636 in words is "three billion, one hundred sixty-one million, forty-six thousand, six hundred thirty-six".