66734077 has 8 divisors (see below), whose sum is σ = 67866176. Its totient is φ = 65606112.

The previous prime is 66734047. The next prime is 66734131. The reversal of 66734077 is 77043766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66734077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66734047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62248 + ... + 63310.

It is an arithmetic number, because the mean of its divisors is an integer number (8483272).

Almost surely, 2^66734077 is an apocalyptic number.

66734077 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

66734077 is a deficient number, since it is larger than the sum of its proper divisors (1132099).

66734077 is a wasteful number, since it uses less digits than its factorization.

66734077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067.

The product of its (nonzero) digits is 148176, while the sum is 40.

The square root of 66734077 is about 8169.0927892882. The cubic root of 66734077 is about 405.6167547546.

The spelling of 66734077 in words is "sixty-six million, seven hundred thirty-four thousand, seventy-seven".