16158578226 has 32 divisors (see below), whose sum is σ = 37127282688. Its totient is φ = 4592562960.

The previous prime is 16158578221. The next prime is 16158578279. The reversal of 16158578226 is 62287585161.

It is a super-2 number, since 2×16158578226² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16158578221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 999120 + ... + 1015163.

It is an arithmetic number, because the mean of its divisors is an integer number (1160227584).

Almost surely, 2^16158578226 is an apocalyptic number.

16158578226 is an abundant number, since it is smaller than the sum of its proper divisors (20968704462).

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

16158578226 is a wasteful number, since it uses less digits than its factorization.

16158578226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014486.

The product of its digits is 1612800, while the sum is 51.

The spelling of 16158578226 in words is "sixteen billion, one hundred fifty-eight million, five hundred seventy-eight thousand, two hundred twenty-six".