66096999 has 16 divisors (see below), whose sum is σ = 98072800. Its totient is φ = 43996608.

The previous prime is 66096983. The next prime is 66097013. The reversal of 66096999 is 99969066.

It is not a de Polignac number, because 66096999 - 2⁴ = 66096983 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 (66096949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20907 + ... + 23859.

It is an arithmetic number, because the mean of its divisors is an integer number (6129550).

Almost surely, 2^66096999 is an apocalyptic number.

66096999 is a deficient number, since it is larger than the sum of its proper divisors (31975801).

66096999 is a wasteful number, since it uses less digits than its factorization.

66096999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3791 (or 3785 counting only the distinct ones).

The product of its (nonzero) digits is 1417176, while the sum is 54.

The square root of 66096999 is about 8130.0060885586. The cubic root of 66096999 is about 404.3218830525.

The spelling of 66096999 in words is "sixty-six million, ninety-six thousand, nine hundred ninety-nine".