1669214907456 has 112 divisors (see below), whose sum is σ = 4559591275008. Its totient is φ = 538378444800.

The previous prime is 1669214907433. The next prime is 1669214907473. The reversal of 1669214907456 is 6547094129661.

It is a self number, because there is not a number n which added to its sum of digits gives 1669214907456.

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, 52486696 + ... + 52518488.

It is an arithmetic number, because the mean of its divisors is an integer number (40710636384).

Almost surely, 2^{1669214907456} is an apocalyptic number.

1669214907456 is a gapful number since it is divisible by the number (16) 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 1669214907456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2279795637504).

1669214907456 is an abundant number, since it is smaller than the sum of its proper divisors (2890376367552).

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

1669214907456 is a wasteful number, since it uses less digits than its factorization.

1669214907456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40660 (or 40650 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 60.

The spelling of 1669214907456 in words is "one trillion, six hundred sixty-nine billion, two hundred fourteen million, nine hundred seven thousand, four hundred fifty-six".