66731302 has 16 divisors (see below), whose sum is σ = 109346112. Its totient is φ = 30290920.

The previous prime is 66731297. The next prime is 66731317. The reversal of 66731302 is 20313766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19233 + ... + 22435.

It is an arithmetic number, because the mean of its divisors is an integer number (6834132).

Almost surely, 2^66731302 is an apocalyptic number.

66731302 is a deficient number, since it is larger than the sum of its proper divisors (42614810).

66731302 is a wasteful number, since it uses less digits than its factorization.

66731302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4163.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 66731302 is about 8168.9229400209. The cubic root of 66731302 is about 405.6111324292.

The spelling of 66731302 in words is "sixty-six million, seven hundred thirty-one thousand, three hundred two".