66017079 has 16 divisors (see below), whose sum is σ = 101176800. Its totient is φ = 42493248.

The previous prime is 66017071. The next prime is 66017111. The reversal of 66017079 is 97071066.

It is not a de Polignac number, because 66017079 - 2³ = 66017071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66017071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41374 + ... + 42939.

It is an arithmetic number, because the mean of its divisors is an integer number (6323550).

Almost surely, 2^66017079 is an apocalyptic number.

66017079 is a deficient number, since it is larger than the sum of its proper divisors (35159721).

66017079 is a wasteful number, since it uses less digits than its factorization.

66017079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84351 (or 84345 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 66017079 is about 8125.0894764304. The cubic root of 66017079 is about 404.1588578125.

The spelling of 66017079 in words is "sixty-six million, seventeen thousand, seventy-nine".