66395049 has 12 divisors (see below), whose sum is σ = 102980304. Its totient is φ = 37939944.

The previous prime is 66395041. The next prime is 66395051. The reversal of 66395049 is 94059366.

It is not a de Polignac number, because 66395049 - 2³ = 66395041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66395049.

It is not an unprimeable number, because it can be changed into a prime (66395041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225687 + ... + 225980.

It is an arithmetic number, because the mean of its divisors is an integer number (8581692).

Almost surely, 2^66395049 is an apocalyptic number.

It is an amenable number.

66395049 is a deficient number, since it is larger than the sum of its proper divisors (36585255).

66395049 is a wasteful number, since it uses less digits than its factorization.

66395049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451684 (or 451677 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 42.

The square root of 66395049 is about 8148.3157155329. The cubic root of 66395049 is about 404.9287056336.

The spelling of 66395049 in words is "sixty-six million, three hundred ninety-five thousand, forty-nine".