1669041504 has 192 divisors, whose sum is σ = 5551519680. Its totient is φ = 483287040.

The previous prime is 1669041503. The next prime is 1669041551. The reversal of 1669041504 is 4051409661.

1669041504 is a `hidden beast` number, since 1 + 66 + 90 + 4 + 1 + 504 = 666.

1669041504 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1669041503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186574 + ... + 195314.

It is an arithmetic number, because the mean of its divisors is an integer number (28914165).

Almost surely, 2^1669041504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1669041504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2775759840).

1669041504 is an abundant number, since it is smaller than the sum of its proper divisors (3882478176).

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

1669041504 is a wasteful number, since it uses less digits than its factorization.

1669041504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8790 (or 8776 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1669041504 is about 40853.9043911350. The cubic root of 1669041504 is about 1186.1939704375.

The spelling of 1669041504 in words is "one billion, six hundred sixty-nine million, forty-one thousand, five hundred four".