66736367 has 4 divisors (see below), whose sum is σ = 66777480. Its totient is φ = 66695256.

The previous prime is 66736361. The next prime is 66736393. The reversal of 66736367 is 76363766.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66736367 - 2¹² = 66732271 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 (66736361) 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 3 ways as a sum of consecutive naturals, for example, 18017 + ... + 21402.

It is an arithmetic number, because the mean of its divisors is an integer number (16694370).

Almost surely, 2^66736367 is an apocalyptic number.

66736367 is a deficient number, since it is larger than the sum of its proper divisors (41113).

66736367 is a wasteful number, since it uses less digits than its factorization.

66736367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41112.

The product of its digits is 571536, while the sum is 44.

The square root of 66736367 is about 8169.2329505285. The cubic root of 66736367 is about 405.6213943220.

The spelling of 66736367 in words is "sixty-six million, seven hundred thirty-six thousand, three hundred sixty-seven".