16564040475274 has 16 divisors (see below), whose sum is σ = 26627035690368. Its totient is φ = 7707826119312.

The previous prime is 16564040475271. The next prime is 16564040475289. The reversal of 16564040475274 is 47257404046561.

It is not an unprimeable number, because it can be changed into a prime (16564040475271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4866050142 + ... + 4866053545.

It is an arithmetic number, because the mean of its divisors is an integer number (1664189730648).

Almost surely, 2^{16564040475274} is an apocalyptic number.

16564040475274 is a deficient number, since it is larger than the sum of its proper divisors (10062995215094).

16564040475274 is a wasteful number, since it uses less digits than its factorization.

16564040475274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9732103749.

The product of its (nonzero) digits is 22579200, while the sum is 55.

The spelling of 16564040475274 in words is "sixteen trillion, five hundred sixty-four billion, forty million, four hundred seventy-five thousand, two hundred seventy-four".