66012367 has 8 divisors (see below), whose sum is σ = 67057616. Its totient is φ = 64971072.

The previous prime is 66012347. The next prime is 66012371. The reversal of 66012367 is 76321066.

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 66012367 - 2²³ = 57623759 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 (66012347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65713 + ... + 66709.

It is an arithmetic number, because the mean of its divisors is an integer number (8382202).

Almost surely, 2^66012367 is an apocalyptic number.

66012367 is a deficient number, since it is larger than the sum of its proper divisors (1045249).

66012367 is an equidigital number, since it uses as much as digits as its factorization.

66012367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977.

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

The square root of 66012367 is about 8124.7995052186. The cubic root of 66012367 is about 404.1492419077.

The spelling of 66012367 in words is "sixty-six million, twelve thousand, three hundred sixty-seven".