244351206164021 has 24 divisors (see below), whose sum is σ = 270526285885632. Its totient is φ = 220533151608000.

The previous prime is 244351206163963. The next prime is 244351206164053. The reversal of 244351206164021 is 120461602153442.

244351206164021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-244351206164021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 244351206164021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244351206164921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26239526 + ... + 34310568.

It is an arithmetic number, because the mean of its divisors is an integer number (11271928578568).

Almost surely, 2^{244351206164021} is an apocalyptic number.

It is an amenable number.

244351206164021 is a deficient number, since it is larger than the sum of its proper divisors (26175079721611).

244351206164021 is a wasteful number, since it uses less digits than its factorization.

244351206164021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8072873 (or 8072862 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 244351206164021 in words is "two hundred forty-four trillion, three hundred fifty-one billion, two hundred six million, one hundred sixty-four thousand, twenty-one".