660046402 has 8 divisors (see below), whose sum is σ = 994762512. Its totient is φ = 328458900.

The previous prime is 660046379. The next prime is 660046411. The reversal of 660046402 is 204640066.

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

It is a super-2 number, since 2×660046402² = 871322505586291208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 781624 + ... + 782467.

It is an arithmetic number, because the mean of its divisors is an integer number (124345314).

Almost surely, 2^660046402 is an apocalyptic number.

660046402 is a deficient number, since it is larger than the sum of its proper divisors (334716110).

660046402 is a wasteful number, since it uses less digits than its factorization.

660046402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564304.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 660046402 is about 25691.3682391577. The cubic root of 660046402 is about 870.6791728353.

Adding to 660046402 its reverse (204640066), we get a palindrome (864686468).

The spelling of 660046402 in words is "six hundred sixty million, forty-six thousand, four hundred two".