2645652210816 has 64 divisors (see below), whose sum is σ = 7333057782720. Its totient is φ = 843541281792.

The previous prime is 2645652210787. The next prime is 2645652210827. The reversal of 2645652210816 is 6180122565462.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149767675 + ... + 149785338.

It is an arithmetic number, because the mean of its divisors is an integer number (114579027855).

Almost surely, 2^{2645652210816} is an apocalyptic number.

It is an amenable number.

2645652210816 is an abundant number, since it is smaller than the sum of its proper divisors (4687405571904).

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

2645652210816 is a wasteful number, since it uses less digits than its factorization.

2645652210816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299553053 (or 299553041 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 2645652210816 in words is "two trillion, six hundred forty-five billion, six hundred fifty-two million, two hundred ten thousand, eight hundred sixteen".