16564713322554 has 12 divisors (see below), whose sum is σ = 35890212198906. Its totient is φ = 5521571107512.

The previous prime is 16564713322523. The next prime is 16564713322571. The reversal of 16564713322554 is 45522331746561.

16564713322554 is a `hidden beast` number, since 1 + 6 + 5 + 6 + 47 + 13 + 32 + 2 + 554 = 666.

16564713322554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 13973653278225 + 2591060044329 = 3738135^2 + 1609677^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16564713322554.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 460130925609 + ... + 460130925644.

Almost surely, 2^{16564713322554} is an apocalyptic number.

16564713322554 is an abundant number, since it is smaller than the sum of its proper divisors (19325498876352).

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

16564713322554 is a wasteful number, since it uses less digits than its factorization.

16564713322554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920261851261 (or 920261851258 counting only the distinct ones).

The product of its digits is 18144000, while the sum is 54.

The spelling of 16564713322554 in words is "sixteen trillion, five hundred sixty-four billion, seven hundred thirteen million, three hundred twenty-two thousand, five hundred fifty-four".