126159911399 has 4 divisors (see below), whose sum is σ = 126725651136. Its totient is φ = 125594171664.

The previous prime is 126159911389. The next prime is 126159911467. The reversal of 126159911399 is 993119951621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126159911399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126159911389) 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, 282869534 + ... + 282869979.

It is an arithmetic number, because the mean of its divisors is an integer number (31681412784).

Almost surely, 2^126159911399 is an apocalyptic number.

126159911399 is a deficient number, since it is larger than the sum of its proper divisors (565739737).

126159911399 is an equidigital number, since it uses as much as digits as its factorization.

126159911399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565739736.

The product of its digits is 1180980, while the sum is 56.

The spelling of 126159911399 in words is "one hundred twenty-six billion, one hundred fifty-nine million, nine hundred eleven thousand, three hundred ninety-nine".