71300066 has 16 divisors (see below), whose sum is σ = 110066040. Its totient is φ = 34619520.

The previous prime is 71300059. The next prime is 71300083. The reversal of 71300066 is 66000317.

It can be written as a sum of positive squares in 4 ways, for example, as 38180041 + 33120025 = 6179^2 + 5755^2 .

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 16880 + ... + 20676.

Almost surely, 2^71300066 is an apocalyptic number.

71300066 is a deficient number, since it is larger than the sum of its proper divisors (38765974).

71300066 is a wasteful number, since it uses less digits than its factorization.

71300066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4069.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 71300066 is about 8443.9366411645. The cubic root of 71300066 is about 414.6642971516.

The spelling of 71300066 in words is "seventy-one million, three hundred thousand, sixty-six".