16555272323564 has 12 divisors (see below), whose sum is σ = 31200320917584. Its totient is φ = 7640894918544.

The previous prime is 16555272323507. The next prime is 16555272323609. The reversal of 16555272323564 is 46532327255561.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159185310752 + ... + 159185310855.

It is an arithmetic number, because the mean of its divisors is an integer number (2600026743132).

Almost surely, 2^{16555272323564} is an apocalyptic number.

It is an amenable number.

16555272323564 is a deficient number, since it is larger than the sum of its proper divisors (14645048594020).

16555272323564 is a wasteful number, since it uses less digits than its factorization.

16555272323564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318370621624 (or 318370621622 counting only the distinct ones).

The product of its digits is 45360000, while the sum is 56.

The spelling of 16555272323564 in words is "sixteen trillion, five hundred fifty-five billion, two hundred seventy-two million, three hundred twenty-three thousand, five hundred sixty-four".