5161656072 has 16 divisors (see below), whose sum is σ = 12904140240. Its totient is φ = 1720552016.

The previous prime is 5161655999. The next prime is 5161656079. The reversal of 5161656072 is 2706561615.

It is a super-2 number, since 2×5161656072² = 53285386811228938368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5161656072.

It is not an unprimeable number, because it can be changed into a prime (5161656079) 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, 107534478 + ... + 107534525.

It is an arithmetic number, because the mean of its divisors is an integer number (806508765).

Almost surely, 2^5161656072 is an apocalyptic number.

It is an amenable number.

5161656072 is an abundant number, since it is smaller than the sum of its proper divisors (7742484168).

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

5161656072 is a wasteful number, since it uses less digits than its factorization.

5161656072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215069012 (or 215069008 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 5161656072 is about 71844.6662738439. Note that the first 3 decimals coincide. The cubic root of 5161656072 is about 1728.2093662429.

The spelling of 5161656072 in words is "five billion, one hundred sixty-one million, six hundred fifty-six thousand, seventy-two".