5161540612 has 12 divisors (see below), whose sum is σ = 9564031260. Its totient is φ = 2428960256.

The previous prime is 5161540609. The next prime is 5161540613. The reversal of 5161540612 is 2160451615.

It can be written as a sum of positive squares in 2 ways, for example, as 3115425856 + 2046114756 = 55816^2 + 45234^2 .

It is not an unprimeable number, because it can be changed into a prime (5161540613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37952437 + ... + 37952572.

It is an arithmetic number, because the mean of its divisors is an integer number (797002605).

Almost surely, 2^5161540612 is an apocalyptic number.

It is an amenable number.

5161540612 is a deficient number, since it is larger than the sum of its proper divisors (4402490648).

5161540612 is a wasteful number, since it uses less digits than its factorization.

5161540612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75905030 (or 75905028 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 5161540612 is about 71843.8627302291. The cubic root of 5161540612 is about 1728.1964801628.

The spelling of 5161540612 in words is "five billion, one hundred sixty-one million, five hundred forty thousand, six hundred twelve".