1669882722480 has 480 divisors, whose sum is σ = 7037528569344. Its totient is φ = 359234777088.

The previous prime is 1669882722457. The next prime is 1669882722509. The reversal of 1669882722480 is 842272889661.

1669882722480 is a `hidden beast` number, since 1 + 6 + 6 + 9 + 8 + 82 + 72 + 2 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1952439 + ... + 2674281.

Almost surely, 2^{1669882722480} is an apocalyptic number.

1669882722480 is a gapful number since it is divisible by the number (10) 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 1669882722480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3518764284672).

1669882722480 is an abundant number, since it is smaller than the sum of its proper divisors (5367645846864).

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

1669882722480 is a wasteful number, since it uses less digits than its factorization.

1669882722480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721895 (or 721877 counting only the distinct ones).

The product of its (nonzero) digits is 37158912, while the sum is 63.

The spelling of 1669882722480 in words is "one trillion, six hundred sixty-nine billion, eight hundred eighty-two million, seven hundred twenty-two thousand, four hundred eighty".