2664361165 has 16 divisors (see below), whose sum is σ = 3368044800. Its totient is φ = 2017783872.

The previous prime is 2664361151. The next prime is 2664361169. The reversal of 2664361165 is 5611634662.

It is a cyclic number.

It is not a de Polignac number, because 2664361165 - 2²⁵ = 2630806733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664361169) 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, 125331 + ... + 145039.

It is an arithmetic number, because the mean of its divisors is an integer number (210502800).

Almost surely, 2^2664361165 is an apocalyptic number.

It is an amenable number.

2664361165 is a deficient number, since it is larger than the sum of its proper divisors (703683635).

2664361165 is a wasteful number, since it uses less digits than its factorization.

2664361165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21156.

The product of its digits is 155520, while the sum is 40.

The square root of 2664361165 is about 51617.4501985520. The cubic root of 2664361165 is about 1386.3227970822.

The spelling of 2664361165 in words is "two billion, six hundred sixty-four million, three hundred sixty-one thousand, one hundred sixty-five".