5161561006 has 16 divisors (see below), whose sum is σ = 8954999424. Its totient is φ = 2185445304.

The previous prime is 5161560997. The next prime is 5161561021. The reversal of 5161561006 is 6001651615.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2219820 + ... + 2222143.

It is an arithmetic number, because the mean of its divisors is an integer number (559687464).

Almost surely, 2^5161561006 is an apocalyptic number.

5161561006 is a deficient number, since it is larger than the sum of its proper divisors (3793438418).

5161561006 is a wasteful number, since it uses less digits than its factorization.

5161561006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4442055.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 5161561006 is about 71844.0046628805. The cubic root of 5161561006 is about 1728.1987562786.

The spelling of 5161561006 in words is "five billion, one hundred sixty-one million, five hundred sixty-one thousand, six".