6165220761 has 48 divisors (see below), whose sum is σ = 10445635200. Its totient is φ = 3430667520.

The previous prime is 6165220739. The next prime is 6165220777. The reversal of 6165220761 is 1670225616.

It is a happy number.

6165220761 is a `hidden beast` number, since 61 + 6 + 522 + 0 + 76 + 1 = 666.

It is not a de Polignac number, because 6165220761 - 2¹⁰ = 6165219737 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6165220961) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 942181 + ... + 948701.

It is an arithmetic number, because the mean of its divisors is an integer number (217617400).

Almost surely, 2^6165220761 is an apocalyptic number.

It is an amenable number.

6165220761 is a deficient number, since it is larger than the sum of its proper divisors (4280414439).

6165220761 is a wasteful number, since it uses less digits than its factorization.

6165220761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6926 (or 6923 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 6165220761 is about 78518.9197646020. The cubic root of 6165220761 is about 1833.6490201907.

The spelling of 6165220761 in words is "six billion, one hundred sixty-five million, two hundred twenty thousand, seven hundred sixty-one".