16660332655432 has 16 divisors (see below), whose sum is σ = 31238217206640. Its totient is φ = 8330141400336.

The previous prime is 16660332655403. The next prime is 16660332655433. The reversal of 16660332655432 is 23455623306661.

It is a self number, because there is not a number n which added to its sum of digits gives 16660332655432.

It is not an unprimeable number, because it can be changed into a prime (16660332655433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104178 + ... + 5773345.

It is an arithmetic number, because the mean of its divisors is an integer number (1952388575415).

Almost surely, 2^{16660332655432} is an apocalyptic number.

It is an amenable number.

16660332655432 is a deficient number, since it is larger than the sum of its proper divisors (14577884551208).

16660332655432 is a wasteful number, since it uses less digits than its factorization.

16660332655432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6231852 (or 6231848 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 52.

The spelling of 16660332655432 in words is "sixteen trillion, six hundred sixty billion, three hundred thirty-two million, six hundred fifty-five thousand, four hundred thirty-two".