16566360334338 has 32 divisors (see below), whose sum is σ = 33147788933952. Its totient is φ = 5519609265600.

The previous prime is 16566360334331. The next prime is 16566360334339. The reversal of 16566360334338 is 83343306366561.

It is a super-2 number, since 2×16566360334338² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16566360334331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134743873 + ... + 134866763.

It is an arithmetic number, because the mean of its divisors is an integer number (1035868404186).

Almost surely, 2^{16566360334338} is an apocalyptic number.

16566360334338 is an abundant number, since it is smaller than the sum of its proper divisors (16581428599614).

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

16566360334338 is a wasteful number, since it uses less digits than its factorization.

16566360334338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132930.

The product of its (nonzero) digits is 50388480, while the sum is 57.

The spelling of 16566360334338 in words is "sixteen trillion, five hundred sixty-six billion, three hundred sixty million, three hundred thirty-four thousand, three hundred thirty-eight".