66754226 has 16 divisors (see below), whose sum is σ = 124839360. Its totient is φ = 26008080.

The previous prime is 66754217. The next prime is 66754229. The reversal of 66754226 is 62245766.

It is a super-2 number, since 2×66754226² = 8912253377718152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66754226.

It is not an unprimeable number, because it can be changed into a prime (66754229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216581 + ... + 216888.

It is an arithmetic number, because the mean of its divisors is an integer number (7802460).

Almost surely, 2^66754226 is an apocalyptic number.

66754226 is a deficient number, since it is larger than the sum of its proper divisors (58085134).

66754226 is a wasteful number, since it uses less digits than its factorization.

66754226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433489.

The product of its digits is 120960, while the sum is 38.

The square root of 66754226 is about 8170.3259420907. The cubic root of 66754226 is about 405.6575732288.

It can be divided in two parts, 6675 and 4226, that added together give a palindrome (10901).

The spelling of 66754226 in words is "sixty-six million, seven hundred fifty-four thousand, two hundred twenty-six".