399297164245 has 32 divisors (see below), whose sum is σ = 579948277248. Its totient is φ = 257640542208.

The previous prime is 399297164243. The next prime is 399297164269. The reversal of 399297164245 is 542461792993.

It is not a de Polignac number, because 399297164245 - 2¹ = 399297164243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399297164243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2698864 + ... + 2842966.

It is an arithmetic number, because the mean of its divisors is an integer number (18123383664).

Almost surely, 2^399297164245 is an apocalyptic number.

399297164245 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

399297164245 is a deficient number, since it is larger than the sum of its proper divisors (180651113003).

399297164245 is a wasteful number, since it uses less digits than its factorization.

399297164245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148789.

The product of its digits is 29393280, while the sum is 61.

The spelling of 399297164245 in words is "three hundred ninety-nine billion, two hundred ninety-seven million, one hundred sixty-four thousand, two hundred forty-five".