5161661332 has 12 divisors (see below), whose sum is σ = 9033660160. Its totient is φ = 2580615576.

The previous prime is 5161661317. The next prime is 5161661341. The reversal of 5161661332 is 2331661615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8143 + ... + 101929.

Almost surely, 2^5161661332 is an apocalyptic number.

It is an amenable number.

5161661332 is a deficient number, since it is larger than the sum of its proper divisors (3871998828).

5161661332 is a wasteful number, since it uses less digits than its factorization.

5161661332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107550 (or 107548 counting only the distinct ones).

The product of its digits is 19440, while the sum is 34.

The square root of 5161661332 is about 71844.7028805882. The cubic root of 5161661332 is about 1728.2099532882.

The spelling of 5161661332 in words is "five billion, one hundred sixty-one million, six hundred sixty-one thousand, three hundred thirty-two".