66097795 has 4 divisors (see below), whose sum is σ = 79317360. Its totient is φ = 52878232.

The previous prime is 66097783. The next prime is 66097813. The reversal of 66097795 is 59779066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66097795 - 2⁷ = 66097667 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6609775 + ... + 6609784.

It is an arithmetic number, because the mean of its divisors is an integer number (19829340).

Almost surely, 2^66097795 is an apocalyptic number.

66097795 is a deficient number, since it is larger than the sum of its proper divisors (13219565).

66097795 is a wasteful number, since it uses less digits than its factorization.

66097795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13219564.

The product of its (nonzero) digits is 714420, while the sum is 49.

The square root of 66097795 is about 8130.0550428641. The cubic root of 66097795 is about 404.3235061163.

The spelling of 66097795 in words is "sixty-six million, ninety-seven thousand, seven hundred ninety-five".