5166565161 has 16 divisors (see below), whose sum is σ = 7011072000. Its totient is φ = 3383656848.

The previous prime is 5166565153. The next prime is 5166565169. The reversal of 5166565161 is 1615656615.

It is an interprime number because it is at equal distance from previous prime (5166565153) and next prime (5166565169).

It is not a de Polignac number, because 5166565161 - 2³ = 5166565153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5166565169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7611 + ... + 101936.

It is an arithmetic number, because the mean of its divisors is an integer number (438192000).

Almost surely, 2^5166565161 is an apocalyptic number.

It is an amenable number.

5166565161 is a deficient number, since it is larger than the sum of its proper divisors (1844506839).

5166565161 is a wasteful number, since it uses less digits than its factorization.

5166565161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109828.

The product of its digits is 162000, while the sum is 42.

The square root of 5166565161 is about 71878.8227574715. The cubic root of 5166565161 is about 1728.7570745294.

The spelling of 5166565161 in words is "five billion, one hundred sixty-six million, five hundred sixty-five thousand, one hundred sixty-one".