8158226688 has 180 divisors, whose sum is σ = 25607926960. Its totient is φ = 2576157696.

The previous prime is 8158226653. The next prime is 8158226689. The reversal of 8158226688 is 8866228518.

It is a happy number.

It is a super-3 number, since 3×8158226688³ (a number of 31 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (8158226689) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 383631 + ... + 404337.

Almost surely, 2^8158226688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8158226688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12803963480).

8158226688 is an abundant number, since it is smaller than the sum of its proper divisors (17449700272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8158226688 is a wasteful number, since it uses less digits than its factorization.

8158226688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20754 (or 20731 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 54.

The square root of 8158226688 is about 90322.9023448649. The cubic root of 8158226688 is about 2013.0995706354.

The spelling of 8158226688 in words is "eight billion, one hundred fifty-eight million, two hundred twenty-six thousand, six hundred eighty-eight".