158222396625 has 32 divisors (see below), whose sum is σ = 263347968000. Its totient is φ = 84364156800.

The previous prime is 158222396623. The next prime is 158222396639. The reversal of 158222396625 is 526693222851.

It is a happy number.

It is not a de Polignac number, because 158222396625 - 2¹ = 158222396623 is a prime.

It is a super-2 number, since 2×158222396625² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (158222396623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1508901 + ... + 1610349.

It is an arithmetic number, because the mean of its divisors is an integer number (8229624000).

Almost surely, 2^158222396625 is an apocalyptic number.

158222396625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

158222396625 is a deficient number, since it is larger than the sum of its proper divisors (105125571375).

158222396625 is a wasteful number, since it uses less digits than its factorization.

158222396625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105626 (or 105616 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 51.

The spelling of 158222396625 in words is "one hundred fifty-eight billion, two hundred twenty-two million, three hundred ninety-six thousand, six hundred twenty-five".