2340663255621 has 12 divisors (see below), whose sum is σ = 3380976099072. Its totient is φ = 1560433833576.

The previous prime is 2340663255587. The next prime is 2340663255709. The reversal of 2340663255621 is 1265523660432.

2340663255621 is a `hidden beast` number, since 2 + 3 + 4 + 0 + 6 + 63 + 25 + 562 + 1 = 666.

It is not a de Polignac number, because 2340663255621 - 2⁷ = 2340663255493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2340667255621) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1423260 + ... + 2589786.

It is an arithmetic number, because the mean of its divisors is an integer number (281748008256).

Almost surely, 2^{2340663255621} is an apocalyptic number.

It is an amenable number.

2340663255621 is a deficient number, since it is larger than the sum of its proper divisors (1040312843451).

2340663255621 is a wasteful number, since it uses less digits than its factorization.

2340663255621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389480 (or 1389477 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 45.

The spelling of 2340663255621 in words is "two trillion, three hundred forty billion, six hundred sixty-three million, two hundred fifty-five thousand, six hundred twenty-one".