66893296 has 10 divisors (see below), whose sum is σ = 129605792. Its totient is φ = 33446640.

The previous prime is 66893291. The next prime is 66893327. The reversal of 66893296 is 69239866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66893291) 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 as a sum of consecutive naturals, namely, 2090400 + ... + 2090431.

Almost surely, 2^66893296 is an apocalyptic number.

It is an amenable number.

66893296 is a deficient number, since it is larger than the sum of its proper divisors (62712496).

66893296 is a wasteful number, since it uses less digits than its factorization.

66893296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180839 (or 4180833 counting only the distinct ones).

The product of its digits is 839808, while the sum is 49.

The square root of 66893296 is about 8178.8321904781. The cubic root of 66893296 is about 405.9390818353.

The spelling of 66893296 in words is "sixty-six million, eight hundred ninety-three thousand, two hundred ninety-six".