2645740216 has 32 divisors (see below), whose sum is σ = 5672636640. Its totient is φ = 1133250048.

The previous prime is 2645740199. The next prime is 2645740261. The reversal of 2645740216 is 6120475462.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94780 + ... + 119476.

It is an arithmetic number, because the mean of its divisors is an integer number (177269895).

Almost surely, 2^2645740216 is an apocalyptic number.

It is an amenable number.

2645740216 is an abundant number, since it is smaller than the sum of its proper divisors (3026896424).

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

2645740216 is a wasteful number, since it uses less digits than its factorization.

2645740216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26623 (or 26619 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 2645740216 is about 51436.7593847046. The cubic root of 2645740216 is about 1383.0856209213.

The spelling of 2645740216 in words is "two billion, six hundred forty-five million, seven hundred forty thousand, two hundred sixteen".