673924945566 has 32 divisors (see below), whose sum is σ = 1385598362400. Its totient is φ = 218361816576.

The previous prime is 673924945489. The next prime is 673924945609. The reversal of 673924945566 is 665549429376.

It is a super-2 number, since 2×673924945566² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 673924945497 and 673924945506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1214071 + ... + 1679826.

It is an arithmetic number, because the mean of its divisors is an integer number (43299948825).

Almost surely, 2^673924945566 is an apocalyptic number.

673924945566 is an abundant number, since it is smaller than the sum of its proper divisors (711673416834).

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

673924945566 is a wasteful number, since it uses less digits than its factorization.

673924945566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894988.

The product of its digits is 293932800, while the sum is 66.

The spelling of 673924945566 in words is "six hundred seventy-three billion, nine hundred twenty-four million, nine hundred forty-five thousand, five hundred sixty-six".