669408096 has 48 divisors (see below), whose sum is σ = 2008226304. Its totient is φ = 191259264.

The previous prime is 669408059. The next prime is 669408101. The reversal of 669408096 is 690804966.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497400 + ... + 498743.

It is an arithmetic number, because the mean of its divisors is an integer number (41838048).

Almost surely, 2^669408096 is an apocalyptic number.

It is an amenable number.

669408096 is an abundant number, since it is smaller than the sum of its proper divisors (1338818208).

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

669408096 is a wasteful number, since it uses less digits than its factorization.

669408096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996163 (or 996155 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 669408096 is about 25872.9220614912. The cubic root of 669408096 is about 874.7762566970.

The spelling of 669408096 in words is "six hundred sixty-nine million, four hundred eight thousand, ninety-six".