399160443656231 has 16 divisors (see below), whose sum is σ = 417773237366784. Its totient is φ = 380652602166144.

The previous prime is 399160443656209. The next prime is 399160443656263. The reversal of 399160443656231 is 132656344061993.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-399160443656231 is a prime.

It is a super-2 number, since 2×399160443656231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399160443659231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146594306 + ... + 149292368.

It is an arithmetic number, because the mean of its divisors is an integer number (26110827335424).

Almost surely, 2^{399160443656231} is an apocalyptic number.

399160443656231 is a deficient number, since it is larger than the sum of its proper divisors (18612793710553).

399160443656231 is a wasteful number, since it uses less digits than its factorization.

399160443656231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717510.

The product of its (nonzero) digits is 75582720, while the sum is 62.

The spelling of 399160443656231 in words is "three hundred ninety-nine trillion, one hundred sixty billion, four hundred forty-three million, six hundred fifty-six thousand, two hundred thirty-one".