66024701 has 2 divisors, whose sum is σ = 66024702. Its totient is φ = 66024700.

The previous prime is 66024691. The next prime is 66024713. The reversal of 66024701 is 10742066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36060025 + 29964676 = 6005^2 + 5474^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66024701 is a prime.

It is a super-2 number, since 2×66024701² = 8718522284278802, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66024781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33012350 + 33012351.

It is an arithmetic number, because the mean of its divisors is an integer number (33012351).

Almost surely, 2^66024701 is an apocalyptic number.

It is an amenable number.

66024701 is a deficient number, since it is larger than the sum of its proper divisors (1).

66024701 is an equidigital number, since it uses as much as digits as its factorization.

66024701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 66024701 is about 8125.5585038814. The cubic root of 66024701 is about 404.1744112638.

Adding to 66024701 its reverse (10742066), we get a palindrome (76766767).

The spelling of 66024701 in words is "sixty-six million, twenty-four thousand, seven hundred one".