66796707 has 4 divisors (see below), whose sum is σ = 89062280. Its totient is φ = 44531136.

The previous prime is 66796693. The next prime is 66796733. The reversal of 66796707 is 70769766.

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

It is not a de Polignac number, because 66796707 - 2⁶ = 66796643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66796747) 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, 11132782 + ... + 11132787.

It is an arithmetic number, because the mean of its divisors is an integer number (22265570).

Almost surely, 2^66796707 is an apocalyptic number.

66796707 is a deficient number, since it is larger than the sum of its proper divisors (22265573).

66796707 is a wasteful number, since it uses less digits than its factorization.

66796707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22265572.

The product of its (nonzero) digits is 666792, while the sum is 48.

The square root of 66796707 is about 8172.9252413074. The cubic root of 66796707 is about 405.7436056604.

The spelling of 66796707 in words is "sixty-six million, seven hundred ninety-six thousand, seven hundred seven".