2245644664 has 8 divisors (see below), whose sum is σ = 4210583760. Its totient is φ = 1122822328.

The previous prime is 2245644659. The next prime is 2245644673. The reversal of 2245644664 is 4664465422.

2245644664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 2245644664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140352784 + ... + 140352799.

It is an arithmetic number, because the mean of its divisors is an integer number (526322970).

Almost surely, 2^2245644664 is an apocalyptic number.

It is an amenable number.

2245644664 is a deficient number, since it is larger than the sum of its proper divisors (1964939096).

2245644664 is a wasteful number, since it uses less digits than its factorization.

2245644664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280705589 (or 280705585 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 43.

The square root of 2245644664 is about 47388.2333918453. The cubic root of 2245644664 is about 1309.5246539846.

The spelling of 2245644664 in words is "two billion, two hundred forty-five million, six hundred forty-four thousand, six hundred sixty-four".