16478847565344 has 72 divisors (see below), whose sum is σ = 49618294705980. Its totient is φ = 5169834528768.

The previous prime is 16478847565339. The next prime is 16478847565387. The reversal of 16478847565344 is 44356574887461.

16478847565344 is a `hidden beast` number, since 1 + 6 + 4 + 7 + 8 + 84 + 7 + 5 + 6 + 534 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12736247788944 + 3742599776400 = 3568788^2 + 1934580^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1682883949 + ... + 1682893740.

Almost surely, 2^{16478847565344} is an apocalyptic number.

It is an amenable number.

16478847565344 is an abundant number, since it is smaller than the sum of its proper divisors (33139447140636).

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

16478847565344 is a wasteful number, since it uses less digits than its factorization.

16478847565344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365777722 (or 3365777711 counting only the distinct ones).

The product of its digits is 2167603200, while the sum is 72.

The spelling of 16478847565344 in words is "sixteen trillion, four hundred seventy-eight billion, eight hundred forty-seven million, five hundred sixty-five thousand, three hundred forty-four".