399816130559 has 4 divisors (see below), whose sum is σ = 400126307280. Its totient is φ = 399505953840.

The previous prime is 399816130547. The next prime is 399816130573. The reversal of 399816130559 is 955031618993.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 399816130559 - 2⁸ = 399816130303 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 399816130498 and 399816130507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399816135559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155086427 + ... + 155089004.

It is an arithmetic number, because the mean of its divisors is an integer number (100031576820).

Almost surely, 2^399816130559 is an apocalyptic number.

399816130559 is a deficient number, since it is larger than the sum of its proper divisors (310176721).

399816130559 is a wasteful number, since it uses less digits than its factorization.

399816130559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310176720.

The product of its (nonzero) digits is 7873200, while the sum is 59.

The spelling of 399816130559 in words is "three hundred ninety-nine billion, eight hundred sixteen million, one hundred thirty thousand, five hundred fifty-nine".