158265378322 has 4 divisors (see below), whose sum is σ = 237398067486. Its totient is φ = 79132689160.

The previous prime is 158265378317. The next prime is 158265378379. The reversal of 158265378322 is 223873562851.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 223873562851 = 263 ⋅851230277.

It can be written as a sum of positive squares in only one way, i.e., 157965707601 + 299670721 = 397449^2 + 17311^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 158265378322.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39566344579 + ... + 39566344582.

Almost surely, 2^158265378322 is an apocalyptic number.

158265378322 is a deficient number, since it is larger than the sum of its proper divisors (79132689164).

158265378322 is an equidigital number, since it uses as much as digits as its factorization.

158265378322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79132689163.

The product of its digits is 4838400, while the sum is 52.

The spelling of 158265378322 in words is "one hundred fifty-eight billion, two hundred sixty-five million, three hundred seventy-eight thousand, three hundred twenty-two".