66045001 has 8 divisors (see below), whose sum is σ = 72723744. Its totient is φ = 59478720.

The previous prime is 66044989. The next prime is 66045041. The reversal of 66045001 is 10054066.

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 66045001 - 2¹¹ = 66042953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66045041) 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, 26880 + ... + 29233.

It is an arithmetic number, because the mean of its divisors is an integer number (9090468).

Almost surely, 2^66045001 is an apocalyptic number.

It is an amenable number.

66045001 is a deficient number, since it is larger than the sum of its proper divisors (6678743).

66045001 is a wasteful number, since it uses less digits than its factorization.

66045001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56231.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 66045001 is about 8126.8075527848. The cubic root of 66045001 is about 404.2158296002.

Adding to 66045001 its reverse (10054066), we get a palindrome (76099067).

The spelling of 66045001 in words is "sixty-six million, forty-five thousand, one".