156426183442 has 4 divisors (see below), whose sum is σ = 234639275166. Its totient is φ = 78213091720.

The previous prime is 156426183413. The next prime is 156426183457. The reversal of 156426183442 is 244381624651.

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

It can be written as a sum of positive squares in only one way, i.e., 156262880601 + 163302841 = 395301^2 + 12779^2 .

It is a junction number, because it is equal to n+sod(n) for n = 156426183392 and 156426183401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39106545859 + ... + 39106545862.

Almost surely, 2^156426183442 is an apocalyptic number.

156426183442 is a deficient number, since it is larger than the sum of its proper divisors (78213091724).

156426183442 is an equidigital number, since it uses as much as digits as its factorization.

156426183442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78213091723.

The product of its digits is 1105920, while the sum is 46.

The spelling of 156426183442 in words is "one hundred fifty-six billion, four hundred twenty-six million, one hundred eighty-three thousand, four hundred forty-two".