85722222158 has 8 divisors (see below), whose sum is σ = 128592467328. Its totient is φ = 42858066384.

The previous prime is 85722222139. The next prime is 85722222167. The reversal of 85722222158 is 85122222758.

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

It is a Curzon number.

It is a congruent number.

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, 1486991 + ... + 1543562.

It is an arithmetic number, because the mean of its divisors is an integer number (16074058416).

Almost surely, 2^85722222158 is an apocalyptic number.

85722222158 is a deficient number, since it is larger than the sum of its proper divisors (42870245170).

85722222158 is a wasteful number, since it uses less digits than its factorization.

85722222158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3044698.

The product of its digits is 358400, while the sum is 44.

The spelling of 85722222158 in words is "eighty-five billion, seven hundred twenty-two million, two hundred twenty-two thousand, one hundred fifty-eight".