66096997 has 4 divisors (see below), whose sum is σ = 66132000. Its totient is φ = 66061996.

The previous prime is 66096983. The next prime is 66097013. The reversal of 66096997 is 79969066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66096997 - 2⁷ = 66096869 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 (66096937) 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, 14497 + ... + 18502.

It is an arithmetic number, because the mean of its divisors is an integer number (16533000).

Almost surely, 2^66096997 is an apocalyptic number.

It is an amenable number.

66096997 is a deficient number, since it is larger than the sum of its proper divisors (35003).

66096997 is a wasteful number, since it uses less digits than its factorization.

66096997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35002.

The product of its (nonzero) digits is 1102248, while the sum is 52.

The square root of 66096997 is about 8130.0059655575. The cubic root of 66096997 is about 404.3218789745.

The spelling of 66096997 in words is "sixty-six million, ninety-six thousand, nine hundred ninety-seven".