399199665302 has 8 divisors (see below), whose sum is σ = 598899532536. Its totient is φ = 199566487792.

The previous prime is 399199665283. The next prime is 399199665307. The reversal of 399199665302 is 203566991993.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399199665307) 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, 16657463 + ... + 16681410.

It is an arithmetic number, because the mean of its divisors is an integer number (74862441567).

Almost surely, 2^399199665302 is an apocalyptic number.

399199665302 is a deficient number, since it is larger than the sum of its proper divisors (199699867234).

399199665302 is a wasteful number, since it uses less digits than its factorization.

399199665302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33344862.

The product of its (nonzero) digits is 21257640, while the sum is 62.

The spelling of 399199665302 in words is "three hundred ninety-nine billion, one hundred ninety-nine million, six hundred sixty-five thousand, three hundred two".