66146226 has 32 divisors (see below), whose sum is σ = 136546560. Its totient is φ = 21350784.

The previous prime is 66146209. The next prime is 66146287. The reversal of 66146226 is 62264166.

It is a super-3 number, since 3×66146226³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23806 + ... + 26438.

It is an arithmetic number, because the mean of its divisors is an integer number (4267080).

Almost surely, 2^66146226 is an apocalyptic number.

66146226 is an abundant number, since it is smaller than the sum of its proper divisors (70400334).

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

66146226 is a wasteful number, since it uses less digits than its factorization.

66146226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770.

The product of its digits is 20736, while the sum is 33.

The square root of 66146226 is about 8133.0330135811. The cubic root of 66146226 is about 404.4222336206.

The spelling of 66146226 in words is "sixty-six million, one hundred forty-six thousand, two hundred twenty-six".