158722222109 has 4 divisors (see below), whose sum is σ = 173151515040. Its totient is φ = 144292929180.

The previous prime is 158722222103. The next prime is 158722222129. The reversal of 158722222109 is 901222227851.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 158722222109 - 2⁴ = 158722222093 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 (158722222103) 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, 7214646449 + ... + 7214646470.

It is an arithmetic number, because the mean of its divisors is an integer number (43287878760).

Almost surely, 2^158722222109 is an apocalyptic number.

It is an amenable number.

158722222109 is a deficient number, since it is larger than the sum of its proper divisors (14429292931).

158722222109 is a wasteful number, since it uses less digits than its factorization.

158722222109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14429292930.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 158722222109 in words is "one hundred fifty-eight billion, seven hundred twenty-two million, two hundred twenty-two thousand, one hundred nine".