66746115 has 24 divisors (see below), whose sum is σ = 120725280. Its totient is φ = 34049664.

The previous prime is 66746093. The next prime is 66746117. The reversal of 66746115 is 51164766.

It is not a de Polignac number, because 66746115 - 2⁵ = 66746083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66746115.

It is not an unprimeable number, because it can be changed into a prime (66746117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31210 + ... + 33279.

It is an arithmetic number, because the mean of its divisors is an integer number (5030220).

Almost surely, 2^66746115 is an apocalyptic number.

66746115 is a deficient number, since it is larger than the sum of its proper divisors (53979165).

66746115 is a wasteful number, since it uses less digits than its factorization.

66746115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64523 (or 64520 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 66746115 is about 8169.8295575856. The cubic root of 66746115 is about 405.6411426993.

The spelling of 66746115 in words is "sixty-six million, seven hundred forty-six thousand, one hundred fifteen".