2665210772 has 24 divisors (see below), whose sum is σ = 5331533760. Its totient is φ = 1141994880.

The previous prime is 2665210739. The next prime is 2665210783. The reversal of 2665210772 is 2770125662.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 220379 + ... + 232157.

It is an arithmetic number, because the mean of its divisors is an integer number (222147240).

Almost surely, 2^2665210772 is an apocalyptic number.

It is an amenable number.

2665210772 is an abundant number, since it is smaller than the sum of its proper divisors (2666322988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2665210772 is a wasteful number, since it uses less digits than its factorization.

2665210772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19871 (or 19869 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 2665210772 is about 51625.6793853602. The cubic root of 2665210772 is about 1386.4701375148.

The spelling of 2665210772 in words is "two billion, six hundred sixty-five million, two hundred ten thousand, seven hundred seventy-two".