2164225625244 has 36 divisors (see below), whose sum is σ = 5659325631960. Its totient is φ = 696532384800.

The previous prime is 2164225625231. The next prime is 2164225625251. The reversal of 2164225625244 is 4425265224612.

2164225625244 is a `hidden beast` number, since 2 + 1 + 6 + 42 + 2 + 562 + 5 + 2 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2164225625244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1036505482 + ... + 1036507569.

Almost surely, 2^{2164225625244} is an apocalyptic number.

It is an amenable number.

2164225625244 is an abundant number, since it is smaller than the sum of its proper divisors (3495100006716).

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

2164225625244 is a wasteful number, since it uses less digits than its factorization.

2164225625244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073013090 (or 2073013085 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 45.

The spelling of 2164225625244 in words is "two trillion, one hundred sixty-four billion, two hundred twenty-five million, six hundred twenty-five thousand, two hundred forty-four".