66734413 has 8 divisors (see below), whose sum is σ = 69417216. Its totient is φ = 64084800.

The previous prime is 66734411. The next prime is 66734449. The reversal of 66734413 is 31443766.

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

It is a cyclic number.

It is not a de Polignac number, because 66734413 - 2¹ = 66734411 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 (66734411) 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, 4156 + ... + 12277.

It is an arithmetic number, because the mean of its divisors is an integer number (8677152).

Almost surely, 2^66734413 is an apocalyptic number.

It is an amenable number.

66734413 is a deficient number, since it is larger than the sum of its proper divisors (2682803).

66734413 is a wasteful number, since it uses less digits than its factorization.

66734413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16595.

The product of its digits is 36288, while the sum is 34.

The square root of 66734413 is about 8169.1133545814. The cubic root of 66734413 is about 405.6174355013.

The spelling of 66734413 in words is "sixty-six million, seven hundred thirty-four thousand, four hundred thirteen".