1669500448770 has 288 divisors, whose sum is σ = 5126563310400. Its totient is φ = 346682730240.

The previous prime is 1669500448729. The next prime is 1669500448793. The reversal of 1669500448770 is 778440059661.

It is a self number, because there is not a number n which added to its sum of digits gives 1669500448770.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 536987976 + ... + 536991084.

It is an arithmetic number, because the mean of its divisors is an integer number (17800567050).

Almost surely, 2^{1669500448770} is an apocalyptic number.

1669500448770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1669500448770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2563281655200).

1669500448770 is an abundant number, since it is smaller than the sum of its proper divisors (3457062861630).

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

1669500448770 is a wasteful number, since it uses less digits than its factorization.

1669500448770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6174 (or 6156 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 1669500448770 in words is "one trillion, six hundred sixty-nine billion, five hundred million, four hundred forty-eight thousand, seven hundred seventy".