15423444221002 has 16 divisors (see below), whose sum is σ = 25138381075200. Its totient is φ = 7070169676320.

The previous prime is 15423444220993. The next prime is 15423444221041. The reversal of 15423444221002 is 20012244432451.

15423444221002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6546452227 + ... + 6546454582.

It is an arithmetic number, because the mean of its divisors is an integer number (1571148817200).

Almost surely, 2^{15423444221002} is an apocalyptic number.

15423444221002 is a deficient number, since it is larger than the sum of its proper divisors (9714936854198).

15423444221002 is a wasteful number, since it uses less digits than its factorization.

15423444221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13092906861.

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 15423444221002 its reverse (20012244432451), we get a palindrome (35435688653453).

The spelling of 15423444221002 in words is "fifteen trillion, four hundred twenty-three billion, four hundred forty-four million, two hundred twenty-one thousand, two".