66117592 has 16 divisors (see below), whose sum is σ = 124057800. Its totient is φ = 33035520.

The previous prime is 66117589. The next prime is 66117599. The reversal of 66117592 is 29571166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66117599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17992 + ... + 21352.

Almost surely, 2^66117592 is an apocalyptic number.

It is an amenable number.

66117592 is a deficient number, since it is larger than the sum of its proper divisors (57940208).

66117592 is a wasteful number, since it uses less digits than its factorization.

66117592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5826 (or 5822 counting only the distinct ones).

The product of its digits is 22680, while the sum is 37.

The square root of 66117592 is about 8131.2724711450. The cubic root of 66117592 is about 404.3638684988.

The spelling of 66117592 in words is "sixty-six million, one hundred seventeen thousand, five hundred ninety-two".