16773455404664 has 128 divisors (see below), whose sum is σ = 38387615523840. Its totient is φ = 6714499663872.

The previous prime is 16773455404663. The next prime is 16773455404723. The reversal of 16773455404664 is 46640455437761.

It is a junction number, because it is equal to n+sod(n) for n = 16773455404597 and 16773455404606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16773455404663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236620394 + ... + 236691270.

It is an arithmetic number, because the mean of its divisors is an integer number (299903246280).

Almost surely, 2^{16773455404664} is an apocalyptic number.

16773455404664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16773455404664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19193807761920).

16773455404664 is an abundant number, since it is smaller than the sum of its proper divisors (21614160119176).

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

16773455404664 is a wasteful number, since it uses less digits than its factorization.

16773455404664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75229 (or 75225 counting only the distinct ones).

The product of its (nonzero) digits is 203212800, while the sum is 62.

The spelling of 16773455404664 in words is "sixteen trillion, seven hundred seventy-three billion, four hundred fifty-five million, four hundred four thousand, six hundred sixty-four".