399297152366 has 16 divisors (see below), whose sum is σ = 686233618656. Its totient is φ = 170696297376.

The previous prime is 399297152363. The next prime is 399297152369. The reversal of 399297152366 is 663251792993.

It is an interprime number because it is at equal distance from previous prime (399297152363) and next prime (399297152369).

It is a junction number, because it is equal to n+sod(n) for n = 399297152299 and 399297152308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399297152363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35915381 + ... + 35926496.

It is an arithmetic number, because the mean of its divisors is an integer number (42889601166).

Almost surely, 2^399297152366 is an apocalyptic number.

399297152366 is a deficient number, since it is larger than the sum of its proper divisors (286936466290).

399297152366 is a wasteful number, since it uses less digits than its factorization.

399297152366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71842283.

The product of its digits is 33067440, while the sum is 62.

The spelling of 399297152366 in words is "three hundred ninety-nine billion, two hundred ninety-seven million, one hundred fifty-two thousand, three hundred sixty-six".