2665797915 has 16 divisors (see below), whose sum is σ = 4653029376. Its totient is φ = 1292508000.

The previous prime is 2665797913. The next prime is 2665797919. The reversal of 2665797915 is 5197975662.

It is not a de Polignac number, because 2665797915 - 2¹ = 2665797913 is a prime.

It is a super-3 number, since 3×2665797915³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2665797913) 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, 8078011 + ... + 8078340.

It is an arithmetic number, because the mean of its divisors is an integer number (290814336).

Almost surely, 2^2665797915 is an apocalyptic number.

2665797915 is a deficient number, since it is larger than the sum of its proper divisors (1987231461).

2665797915 is a wasteful number, since it uses less digits than its factorization.

2665797915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16156370.

The product of its digits is 7144200, while the sum is 57.

The square root of 2665797915 is about 51631.3656123872. The cubic root of 2665797915 is about 1386.5719426545.

The spelling of 2665797915 in words is "two billion, six hundred sixty-five million, seven hundred ninety-seven thousand, nine hundred fifteen".