1668333333366 has 64 divisors (see below), whose sum is σ = 4316981184000. Its totient is φ = 467672950368.

The previous prime is 1668333333323. The next prime is 1668333333377. The reversal of 1668333333366 is 6633333338661.

It is a super-2 number, since 2×1668333333366² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41617516 + ... + 41657583.

It is an arithmetic number, because the mean of its divisors is an integer number (67452831000).

Almost surely, 2^{1668333333366} is an apocalyptic number.

1668333333366 is an abundant number, since it is smaller than the sum of its proper divisors (2648647850634).

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

1668333333366 is a wasteful number, since it uses less digits than its factorization.

1668333333366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83275170 (or 83275164 counting only the distinct ones).

The product of its digits is 22674816, while the sum is 54.

The spelling of 1668333333366 in words is "one trillion, six hundred sixty-eight billion, three hundred thirty-three million, three hundred thirty-three thousand, three hundred sixty-six".