5161031636 has 48 divisors (see below), whose sum is σ = 9733752000. Its totient is φ = 2387024640.

The previous prime is 5161031597. The next prime is 5161031639. The reversal of 5161031636 is 6361301615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5161031639) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 640400 + ... + 648408.

It is an arithmetic number, because the mean of its divisors is an integer number (202786500).

Almost surely, 2^5161031636 is an apocalyptic number.

It is an amenable number.

5161031636 is a deficient number, since it is larger than the sum of its proper divisors (4572720364).

5161031636 is a wasteful number, since it uses less digits than its factorization.

5161031636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8232 (or 8230 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 5161031636 is about 71840.3204057443. The cubic root of 5161031636 is about 1728.1396728700.

The spelling of 5161031636 in words is "five billion, one hundred sixty-one million, thirty-one thousand, six hundred thirty-six".