66492930 has 32 divisors (see below), whose sum is σ = 182381184. Its totient is φ = 15198336.

The previous prime is 66492901. The next prime is 66492947. The reversal of 66492930 is 3929466.

It is a happy number.

66492930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158107 + ... + 158526.

It is an arithmetic number, because the mean of its divisors is an integer number (5699412).

Almost surely, 2^66492930 is an apocalyptic number.

66492930 is an abundant number, since it is smaller than the sum of its proper divisors (115888254).

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

66492930 is a wasteful number, since it uses less digits than its factorization.

66492930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316650.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 66492930 is about 8154.3197141147. The cubic root of 66492930 is about 405.1275927812.

The spelling of 66492930 in words is "sixty-six million, four hundred ninety-two thousand, nine hundred thirty".