2665254670 has 64 divisors (see below), whose sum is σ = 5331686976. Its totient is φ = 952888320.

The previous prime is 2665254661. The next prime is 2665254671. The reversal of 2665254670 is 764525662.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665254671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1090650 + ... + 1093090.

It is an arithmetic number, because the mean of its divisors is an integer number (83307609).

Almost surely, 2^2665254670 is an apocalyptic number.

2665254670 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

2665254670 is a wasteful number, since it uses less digits than its factorization.

2665254670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725.

The product of its (nonzero) digits is 604800, while the sum is 43.

The square root of 2665254670 is about 51626.1045402420. The cubic root of 2665254670 is about 1386.4777495372.

The spelling of 2665254670 in words is "two billion, six hundred sixty-five million, two hundred fifty-four thousand, six hundred seventy".