66982710 has 32 divisors (see below), whose sum is σ = 161925120. Its totient is φ = 17732448.

The previous prime is 66982687. The next prime is 66982717. The reversal of 66982710 is 1728966.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66982717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3862 + ... + 12201.

It is an arithmetic number, because the mean of its divisors is an integer number (5060160).

Almost surely, 2^66982710 is an apocalyptic number.

66982710 is an abundant number, since it is smaller than the sum of its proper divisors (94942410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66982710 is a wasteful number, since it uses less digits than its factorization.

66982710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16212.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 66982710 is about 8184.2965488794. The cubic root of 66982710 is about 406.1198696425.

The spelling of 66982710 in words is "sixty-six million, nine hundred eighty-two thousand, seven hundred ten".