66320134 has 4 divisors (see below), whose sum is σ = 99480204. Its totient is φ = 33160066.

The previous prime is 66320131. The next prime is 66320143. The reversal of 66320134 is 43102366.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 66320099 and 66320108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66320131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16580032 + ... + 16580035.

It is an arithmetic number, because the mean of its divisors is an integer number (24870051).

Almost surely, 2^66320134 is an apocalyptic number.

66320134 is a deficient number, since it is larger than the sum of its proper divisors (33160070).

66320134 is a wasteful number, since it uses less digits than its factorization.

66320134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33160069.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 66320134 is about 8143.7174558060. The cubic root of 66320134 is about 404.7763516509.

The spelling of 66320134 in words is "sixty-six million, three hundred twenty thousand, one hundred thirty-four".