66023001 has 24 divisors (see below), whose sum is σ = 106007616. Its totient is φ = 39255840.

The previous prime is 66022991. The next prime is 66023003. The reversal of 66023001 is 10032066.

It is a happy number.

66023001 is a `hidden beast` number, since 660 + 2 + 3 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 66023001 - 2⁵ = 66022969 is a prime.

It is a super-2 number, since 2×66023001² = 8718073322092002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66023003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1045 + ... + 11538.

It is an arithmetic number, because the mean of its divisors is an integer number (4416984).

Almost surely, 2^66023001 is an apocalyptic number.

It is an amenable number.

66023001 is a deficient number, since it is larger than the sum of its proper divisors (39984615).

66023001 is a wasteful number, since it uses less digits than its factorization.

66023001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12653 (or 12650 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 66023001 is about 8125.4538950141. The cubic root of 66023001 is about 404.1709423480.

Adding to 66023001 its reverse (10032066), we get a palindrome (76055067).

The spelling of 66023001 in words is "sixty-six million, twenty-three thousand, one".