16773537435664 has 20 divisors (see below), whose sum is σ = 32564917653840. Its totient is φ = 8369687718560.

The previous prime is 16773537435619. The next prime is 16773537435689. The reversal of 16773537435664 is 46653473537761.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16773537435664.

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, 1067554354 + ... + 1067570065.

It is an arithmetic number, because the mean of its divisors is an integer number (1628245882692).

Almost surely, 2^{16773537435664} is an apocalyptic number.

It is an amenable number.

16773537435664 is a deficient number, since it is larger than the sum of its proper divisors (15791380218176).

16773537435664 is a wasteful number, since it uses less digits than its factorization.

16773537435664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135124918 (or 2135124912 counting only the distinct ones).

The product of its digits is 800150400, while the sum is 67.

The spelling of 16773537435664 in words is "sixteen trillion, seven hundred seventy-three billion, five hundred thirty-seven million, four hundred thirty-five thousand, six hundred sixty-four".