1669715520000 has 1600 divisors, whose sum is σ = 6560649520128. Its totient is φ = 372736000000.

The previous prime is 1669715519987. The next prime is 1669715520043. The reversal of 1669715520000 is 255179661.

It is a tau number, because it is divible by the number of its divisors (1600).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 12745919935 + ... + 12745920065.

Almost surely, 2^{1669715520000} is an apocalyptic number.

1669715520000 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 1669715520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3280324760064).

1669715520000 is an abundant number, since it is smaller than the sum of its proper divisors (4890934000128).

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

1669715520000 is a wasteful number, since it uses less digits than its factorization.

1669715520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 42.

The spelling of 1669715520000 in words is "one trillion, six hundred sixty-nine billion, seven hundred fifteen million, five hundred twenty thousand".