66077067 has 16 divisors (see below), whose sum is σ = 101041920. Its totient is φ = 37625952.

The previous prime is 66077059. The next prime is 66077069. The reversal of 66077067 is 76077066.

It is not a de Polignac number, because 66077067 - 2³ = 66077059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66077069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 784 + ... + 11522.

It is an arithmetic number, because the mean of its divisors is an integer number (6315120).

Almost surely, 2^66077067 is an apocalyptic number.

66077067 is a deficient number, since it is larger than the sum of its proper divisors (34964853).

66077067 is a wasteful number, since it uses less digits than its factorization.

66077067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11042.

The product of its (nonzero) digits is 74088, while the sum is 39.

The square root of 66077067 is about 8128.7801667901. The cubic root of 66077067 is about 404.2812369611.

Subtracting 66077067 from its reverse (76077066), we obtain a palindrome (9999999).

The spelling of 66077067 in words is "sixty-six million, seventy-seven thousand, sixty-seven".