44157360631221 has 24 divisors (see below), whose sum is σ = 64201540291200. Its totient is φ = 29245453798176.

The previous prime is 44157360631199. The next prime is 44157360631243. The reversal of 44157360631221 is 12213606375144.

44157360631221 is a `hidden beast` number, since 4 + 4 + 1 + 5 + 7 + 3 + 6 + 0 + 631 + 2 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (44157360631199) and next prime (44157360631243).

It is not a de Polignac number, because 44157360631221 - 2⁶ = 44157360631157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44157360631291) 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, 17708841 + ... + 20047886.

It is an arithmetic number, because the mean of its divisors is an integer number (2675064178800).

Almost surely, 2^{44157360631221} is an apocalyptic number.

It is an amenable number.

44157360631221 is a deficient number, since it is larger than the sum of its proper divisors (20044179659979).

44157360631221 is a wasteful number, since it uses less digits than its factorization.

44157360631221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37757585 (or 37757582 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 44157360631221 in words is "forty-four trillion, one hundred fifty-seven billion, three hundred sixty million, six hundred thirty-one thousand, two hundred twenty-one".