545422321666 has 8 divisors (see below), whose sum is σ = 818136689040. Its totient is φ = 272710091988.

The previous prime is 545422321621. The next prime is 545422321687. The reversal of 545422321666 is 666123224545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517725 + ... + 1165711.

It is an arithmetic number, because the mean of its divisors is an integer number (102267086130).

Almost surely, 2^545422321666 is an apocalyptic number.

545422321666 is a deficient number, since it is larger than the sum of its proper divisors (272714367374).

545422321666 is a wasteful number, since it uses less digits than its factorization.

545422321666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068848.

The product of its digits is 2073600, while the sum is 46.

The spelling of 545422321666 in words is "five hundred forty-five billion, four hundred twenty-two million, three hundred twenty-one thousand, six hundred sixty-six".