66717134 has 16 divisors (see below), whose sum is σ = 109911600. Its totient is φ = 30120960.

The previous prime is 66717107. The next prime is 66717137. The reversal of 66717134 is 43171766.

It is a junction number, because it is equal to n+sod(n) for n = 66717094 and 66717103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66717137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6899 + ... + 13454.

It is an arithmetic number, because the mean of its divisors is an integer number (6869475).

Almost surely, 2^66717134 is an apocalyptic number.

66717134 is a deficient number, since it is larger than the sum of its proper divisors (43194466).

66717134 is a wasteful number, since it uses less digits than its factorization.

66717134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20515.

The product of its digits is 21168, while the sum is 35.

The square root of 66717134 is about 8168.0557050010. The cubic root of 66717134 is about 405.5824247358.

The spelling of 66717134 in words is "sixty-six million, seven hundred seventeen thousand, one hundred thirty-four".