66949514 has 8 divisors (see below), whose sum is σ = 100463328. Its totient is φ = 33461740.

The previous prime is 66949507. The next prime is 66949517. The reversal of 66949514 is 41594966.

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

It is not an unprimeable number, because it can be changed into a prime (66949517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2309 + ... + 11799.

It is an arithmetic number, because the mean of its divisors is an integer number (12557916).

Almost surely, 2^66949514 is an apocalyptic number.

66949514 is a deficient number, since it is larger than the sum of its proper divisors (33513814).

66949514 is a wasteful number, since it uses less digits than its factorization.

66949514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13020.

The product of its digits is 233280, while the sum is 44.

The square root of 66949514 is about 8182.2682674183. The cubic root of 66949514 is about 406.0527688294.

The spelling of 66949514 in words is "sixty-six million, nine hundred forty-nine thousand, five hundred fourteen".