156326223913 has 2 divisors, whose sum is σ = 156326223914. Its totient is φ = 156326223912.

The previous prime is 156326223881. The next prime is 156326223917. The reversal of 156326223913 is 319322623651.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82387369024 + 73938854889 = 287032^2 + 271917^2 .

It is an emirp because it is prime and its reverse (319322623651) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 156326223913 - 2⁵ = 156326223881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 156326223913.

It is not a weakly prime, because it can be changed into another prime (156326223917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78163111956 + 78163111957.

It is an arithmetic number, because the mean of its divisors is an integer number (78163111957).

Almost surely, 2^156326223913 is an apocalyptic number.

It is an amenable number.

156326223913 is a deficient number, since it is larger than the sum of its proper divisors (1).

156326223913 is an equidigital number, since it uses as much as digits as its factorization.

156326223913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 43.

The spelling of 156326223913 in words is "one hundred fifty-six billion, three hundred twenty-six million, two hundred twenty-three thousand, nine hundred thirteen".