66496899 has 8 divisors (see below), whose sum is σ = 101328640. Its totient is φ = 37998216.

The previous prime is 66496873. The next prime is 66496901. The reversal of 66496899 is 99869466.

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

It is not a de Polignac number, because 66496899 - 2⁹ = 66496387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66496099) 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, 1583239 + ... + 1583280.

It is an arithmetic number, because the mean of its divisors is an integer number (12666080).

Almost surely, 2^66496899 is an apocalyptic number.

66496899 is a deficient number, since it is larger than the sum of its proper divisors (34831741).

66496899 is a wasteful number, since it uses less digits than its factorization.

66496899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3166529.

The product of its digits is 5038848, while the sum is 57.

The square root of 66496899 is about 8154.5630784243. The cubic root of 66496899 is about 405.1356533847.

The spelling of 66496899 in words is "sixty-six million, four hundred ninety-six thousand, eight hundred ninety-nine".