66036031 has 2 divisors, whose sum is σ = 66036032. Its totient is φ = 66036030.

The previous prime is 66036017. The next prime is 66036053. The reversal of 66036031 is 13063066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66036031 - 2⁵ = 66035999 is a prime.

It is a super-2 number, since 2×66036031² = 8721514780465922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66035987 and 66036005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66036011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33018015 + 33018016.

It is an arithmetic number, because the mean of its divisors is an integer number (33018016).

Almost surely, 2^66036031 is an apocalyptic number.

66036031 is a deficient number, since it is larger than the sum of its proper divisors (1).

66036031 is an equidigital number, since it uses as much as digits as its factorization.

66036031 is an evil number, because the sum of its binary digits is even.

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

The square root of 66036031 is about 8126.2556568201. The cubic root of 66036031 is about 404.1975290470.

Adding to 66036031 its reverse (13063066), we get a palindrome (79099097).

The spelling of 66036031 in words is "sixty-six million, thirty-six thousand, thirty-one".