66714331 has 2 divisors, whose sum is σ = 66714332. Its totient is φ = 66714330.

The previous prime is 66714299. The next prime is 66714337. The reversal of 66714331 is 13341766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66714331 - 2⁵ = 66714299 is a prime.

It is a super-2 number, since 2×66714331² = 8901603921555122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66714293 and 66714302.

It is not a weakly prime, because it can be changed into another prime (66714337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33357165 + 33357166.

It is an arithmetic number, because the mean of its divisors is an integer number (33357166).

Almost surely, 2^66714331 is an apocalyptic number.

66714331 is a deficient number, since it is larger than the sum of its proper divisors (1).

66714331 is an equidigital number, since it uses as much as digits as its factorization.

66714331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 31.

The square root of 66714331 is about 8167.8841201378. The cubic root of 66714331 is about 405.5767447183.

The spelling of 66714331 in words is "sixty-six million, seven hundred fourteen thousand, three hundred thirty-one".