66226064 has 10 divisors (see below), whose sum is σ = 128313030. Its totient is φ = 33113024.

The previous prime is 66226049. The next prime is 66226079. The reversal of 66226064 is 46062266.

66226064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (66226049) and next prime (66226079).

It can be written as a sum of positive squares in only one way, i.e., 64000000 + 2226064 = 8000^2 + 1492^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66226064.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069549 + ... + 2069580.

It is an arithmetic number, because the mean of its divisors is an integer number (12831303).

Almost surely, 2^66226064 is an apocalyptic number.

It is an amenable number.

66226064 is a deficient number, since it is larger than the sum of its proper divisors (62086966).

66226064 is a wasteful number, since it uses less digits than its factorization.

66226064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4139137 (or 4139131 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 66226064 is about 8137.9397884231. The cubic root of 66226064 is about 404.5848797376.

The spelling of 66226064 in words is "sixty-six million, two hundred twenty-six thousand, sixty-four".