66226963 has 8 divisors (see below), whose sum is σ = 72354240. Its totient is φ = 60117480.

The previous prime is 66226949. The next prime is 66226999. The reversal of 66226963 is 36962266.

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

It is a cyclic number.

It is not a de Polignac number, because 66226963 - 2²¹ = 64129811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66226933) 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, 4056 + ... + 12202.

It is an arithmetic number, because the mean of its divisors is an integer number (9044280).

Almost surely, 2^66226963 is an apocalyptic number.

66226963 is a deficient number, since it is larger than the sum of its proper divisors (6127277).

66226963 is a wasteful number, since it uses less digits than its factorization.

66226963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8897.

The product of its digits is 139968, while the sum is 40.

The square root of 66226963 is about 8137.9950233457. The cubic root of 66226963 is about 404.5867104375.

The spelling of 66226963 in words is "sixty-six million, two hundred twenty-six thousand, nine hundred sixty-three".