5161106665 has 16 divisors (see below), whose sum is σ = 7276078656. Its totient is φ = 3464798400.

The previous prime is 5161106659. The next prime is 5161106669. The reversal of 5161106665 is 5666011615.

It is not a de Polignac number, because 5161106665 - 2⁵ = 5161106633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5161106669) 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, 3608451 + ... + 3609880.

It is an arithmetic number, because the mean of its divisors is an integer number (454754916).

Almost surely, 2^5161106665 is an apocalyptic number.

5161106665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5161106665 is a deficient number, since it is larger than the sum of its proper divisors (2114971991).

5161106665 is a wasteful number, since it uses less digits than its factorization.

5161106665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7218360.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 5161106665 is about 71840.8425966734. The cubic root of 5161106665 is about 1728.1480471623.

The spelling of 5161106665 in words is "five billion, one hundred sixty-one million, one hundred six thousand, six hundred sixty-five".