66045626 has 8 divisors (see below), whose sum is σ = 99284724. Its totient is φ = 32950720.

The previous prime is 66045619. The next prime is 66045631. The reversal of 66045626 is 62654066.

It can be written as a sum of positive squares in 2 ways, for example, as 60824401 + 5221225 = 7799^2 + 2285^2 .

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, 34895 + ... + 36738.

Almost surely, 2^66045626 is an apocalyptic number.

66045626 is a deficient number, since it is larger than the sum of its proper divisors (33239098).

66045626 is a wasteful number, since it uses less digits than its factorization.

66045626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72096.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 66045626 is about 8126.8460056777. The cubic root of 66045626 is about 404.2171046606.

The spelling of 66045626 in words is "sixty-six million, forty-five thousand, six hundred twenty-six".