22721605499744 has 48 divisors (see below), whose sum is σ = 45170331242400. Its totient is φ = 11249789352960.

The previous prime is 22721605499741. The next prime is 22721605499753. The reversal of 22721605499744 is 44799450612722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22721605499741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53715182 + ... + 54136530.

It is an arithmetic number, because the mean of its divisors is an integer number (941048567550).

Almost surely, 2^{22721605499744} is an apocalyptic number.

It is an amenable number.

22721605499744 is a deficient number, since it is larger than the sum of its proper divisors (22448725742656).

22721605499744 is a wasteful number, since it uses less digits than its factorization.

22721605499744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437823 (or 437815 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 62.

The spelling of 22721605499744 in words is "twenty-two trillion, seven hundred twenty-one billion, six hundred five million, four hundred ninety-nine thousand, seven hundred forty-four".