6665674408 has 16 divisors (see below), whose sum is σ = 12515979060. Its totient is φ = 3328080000.

The previous prime is 6665674399. The next prime is 6665674409. The reversal of 6665674408 is 8044765666.

It can be written as a sum of positive squares in 2 ways, for example, as 5360875524 + 1304798884 = 73218^2 + 36122^2 .

It is not an unprimeable number, because it can be changed into a prime (6665674409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588693 + ... + 599908.

Almost surely, 2^6665674408 is an apocalyptic number.

It is an amenable number.

6665674408 is a deficient number, since it is larger than the sum of its proper divisors (5850304652).

6665674408 is a wasteful number, since it uses less digits than its factorization.

6665674408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189308 (or 1189304 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 52.

The square root of 6665674408 is about 81643.5815480923. The cubic root of 6665674408 is about 1881.9786780135.

The spelling of 6665674408 in words is "six billion, six hundred sixty-five million, six hundred seventy-four thousand, four hundred eight".