66714575 has 6 divisors (see below), whose sum is σ = 82726104. Its totient is φ = 53371640.

The previous prime is 66714569. The next prime is 66714577. The reversal of 66714575 is 57541766.

It is not a de Polignac number, because 66714575 - 2¹⁰ = 66713551 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 (66714577) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1334267 + ... + 1334316.

It is an arithmetic number, because the mean of its divisors is an integer number (13787684).

Almost surely, 2^66714575 is an apocalyptic number.

66714575 is a deficient number, since it is larger than the sum of its proper divisors (16011529).

66714575 is a wasteful number, since it uses less digits than its factorization.

66714575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668593 (or 2668588 counting only the distinct ones).

The product of its digits is 176400, while the sum is 41.

The square root of 66714575 is about 8167.8990566730. The cubic root of 66714575 is about 405.5772391678.

The spelling of 66714575 in words is "sixty-six million, seven hundred fourteen thousand, five hundred seventy-five".