66036013 has 8 divisors (see below), whose sum is σ = 69553728. Its totient is φ = 62572224.

The previous prime is 66036011. The next prime is 66036017. The reversal of 66036013 is 31063066.

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 66036013 - 2¹ = 66036011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66036011) 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, 10956 + ... + 15877.

It is an arithmetic number, because the mean of its divisors is an integer number (8694216).

Almost surely, 2^66036013 is an apocalyptic number.

It is an amenable number.

66036013 is a deficient number, since it is larger than the sum of its proper divisors (3517715).

66036013 is a wasteful number, since it uses less digits than its factorization.

66036013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26963.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 66036013 is about 8126.2545492988. The cubic root of 66036013 is about 404.1974923218.

Adding to 66036013 its reverse (31063066), we get a palindrome (97099079).

The spelling of 66036013 in words is "sixty-six million, thirty-six thousand, thirteen".