15220854705344 has 56 divisors (see below), whose sum is σ = 31985752434768. Its totient is φ = 7161597255680.

The previous prime is 15220854705307. The next prime is 15220854705359. The reversal of 15220854705344 is 44350745802251.

15220854705344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15220854705344² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15220854705292 and 15220854705301.

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, 5621204 + ... + 7876524.

Almost surely, 2^{15220854705344} is an apocalyptic number.

It is an amenable number.

15220854705344 is an abundant number, since it is smaller than the sum of its proper divisors (16764897729424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15220854705344 is a wasteful number, since it uses less digits than its factorization.

15220854705344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261553 (or 2261543 counting only the distinct ones).

The product of its (nonzero) digits is 5376000, while the sum is 50.

The spelling of 15220854705344 in words is "fifteen trillion, two hundred twenty billion, eight hundred fifty-four million, seven hundred five thousand, three hundred forty-four".