66045622 has 8 divisors (see below), whose sum is σ = 101176416. Its totient is φ = 32320152.

The previous prime is 66045619. The next prime is 66045631. The reversal of 66045622 is 22654066.

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

It is a congruent number.

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, 351213 + ... + 351400.

It is an arithmetic number, because the mean of its divisors is an integer number (12647052).

Almost surely, 2^66045622 is an apocalyptic number.

66045622 is a deficient number, since it is larger than the sum of its proper divisors (35130794).

66045622 is a wasteful number, since it uses less digits than its factorization.

66045622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702662.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 66045622 is about 8126.8457595798. The cubic root of 66045622 is about 404.2170965002.

Adding to 66045622 its reverse (22654066), we get a palindrome (88699688).

The spelling of 66045622 in words is "sixty-six million, forty-five thousand, six hundred twenty-two".