156623725442 has 8 divisors (see below), whose sum is σ = 234938494332. Its totient is φ = 78310894000.

The previous prime is 156623725403. The next prime is 156623725463. The reversal of 156623725442 is 244527326651.

156623725442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 130869574081 + 25754151361 = 361759^2 + 160481^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261809 + ... + 617892.

Almost surely, 2^156623725442 is an apocalyptic number.

156623725442 is a deficient number, since it is larger than the sum of its proper divisors (78314768890).

156623725442 is an equidigital number, since it uses as much as digits as its factorization.

156623725442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968724.

The product of its digits is 2419200, while the sum is 47.

The spelling of 156623725442 in words is "one hundred fifty-six billion, six hundred twenty-three million, seven hundred twenty-five thousand, four hundred forty-two".