6660400602 has 8 divisors (see below), whose sum is σ = 13320801216. Its totient is φ = 2220133532.

The previous prime is 6660400577. The next prime is 6660400633. The reversal of 6660400602 is 2060040666.

It is a sphenic number, since it is the product of 3 distinct primes.

6660400602 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 6660400602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555033378 + ... + 555033389.

It is an arithmetic number, because the mean of its divisors is an integer number (1665100152).

Almost surely, 2^6660400602 is an apocalyptic number.

6660400602 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6660400602 is a wasteful number, since it uses less digits than its factorization.

6660400602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110066772.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 6660400602 is about 81611.2774192391. The cubic root of 6660400602 is about 1881.4822136623.

The spelling of 6660400602 in words is "six billion, six hundred sixty million, four hundred thousand, six hundred two".