669492096 has 512 divisors, whose sum is σ = 2467584000. Its totient is φ = 158957568.

The previous prime is 669492071. The next prime is 669492101. The reversal of 669492096 is 690294966.

669492096 is digitally balanced in base 2, 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 (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29108341 + ... + 29108363.

It is an arithmetic number, because the mean of its divisors is an integer number (4819500).

Almost surely, 2^669492096 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 669492096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1233792000).

669492096 is an abundant number, since it is smaller than the sum of its proper divisors (1798091904).

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

669492096 is a wasteful number, since it uses less digits than its factorization.

669492096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 51.

The square root of 669492096 is about 25874.5453293386. The cubic root of 669492096 is about 874.8128453055.

It can be divided in two parts, 6694 and 92096, that added together give a triangular number (98790 = T₄₄₄).

The spelling of 669492096 in words is "six hundred sixty-nine million, four hundred ninety-two thousand, ninety-six".