66374701 has 2 divisors, whose sum is σ = 66374702. Its totient is φ = 66374700.

The previous prime is 66374699. The next prime is 66374713. The reversal of 66374701 is 10747366.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62821476 + 3553225 = 7926^2 + 1885^2 .

It is a cyclic number.

It is not a de Polignac number, because 66374701 - 2¹ = 66374699 is a prime.

It is a super-3 number, since 3×66374701³ (a number of 24 digits) contains 333 as substring.

Together with 66374699, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66374101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33187350 + 33187351.

It is an arithmetic number, because the mean of its divisors is an integer number (33187351).

Almost surely, 2^66374701 is an apocalyptic number.

It is an amenable number.

66374701 is a deficient number, since it is larger than the sum of its proper divisors (1).

66374701 is an equidigital number, since it uses as much as digits as its factorization.

66374701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 66374701 is about 8147.0670182588. The cubic root of 66374701 is about 404.8873354246.

The spelling of 66374701 in words is "sixty-six million, three hundred seventy-four thousand, seven hundred one".