22156066 has 8 divisors (see below), whose sum is σ = 35189100. Its totient is φ = 10426368.

The previous prime is 22156027. The next prime is 22156111. The reversal of 22156066 is 66065122.

It can be written as a sum of positive squares in 2 ways, for example, as 16769025 + 5387041 = 4095^2 + 2321^2 .

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

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, 325791 + ... + 325858.

Almost surely, 2^22156066 is an apocalyptic number.

22156066 is a deficient number, since it is larger than the sum of its proper divisors (13033034).

22156066 is a wasteful number, since it uses less digits than its factorization.

22156066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651668.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 22156066 is about 4707.0230507190. The cubic root of 22156066 is about 280.8649528588.

It can be divided in two parts, 2215 and 6066, that added together give a square (8281 = 91²).

The spelling of 22156066 in words is "twenty-two million, one hundred fifty-six thousand, sixty-six".