2665057515 has 48 divisors (see below), whose sum is σ = 4649049600. Its totient is φ = 1300005504.

The previous prime is 2665057511. The next prime is 2665057517. The reversal of 2665057515 is 5157505662.

It is a happy number.

It is not a de Polignac number, because 2665057515 - 2² = 2665057511 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2665057511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 234126 + ... + 245244.

It is an arithmetic number, because the mean of its divisors is an integer number (96855200).

Almost surely, 2^2665057515 is an apocalyptic number.

2665057515 is a deficient number, since it is larger than the sum of its proper divisors (1983992085).

2665057515 is a wasteful number, since it uses less digits than its factorization.

2665057515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11204 (or 11175 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 42.

The square root of 2665057515 is about 51624.1950542573. The cubic root of 2665057515 is about 1386.4435617146.

The spelling of 2665057515 in words is "two billion, six hundred sixty-five million, fifty-seven thousand, five hundred fifteen".