66750334 has 16 divisors (see below), whose sum is σ = 114690528. Its totient is φ = 28541952.

The previous prime is 66750329. The next prime is 66750349. The reversal of 66750334 is 43305766.

It is a super-2 number, since 2×66750334² = 8911214178223112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66750334.

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, 1182 + ... + 11614.

It is an arithmetic number, because the mean of its divisors is an integer number (7168158).

Almost surely, 2^66750334 is an apocalyptic number.

66750334 is a deficient number, since it is larger than the sum of its proper divisors (47940194).

66750334 is a wasteful number, since it uses less digits than its factorization.

66750334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10899.

The product of its (nonzero) digits is 45360, while the sum is 34.

The square root of 66750334 is about 8170.0877596266. The cubic root of 66750334 is about 405.6496893336.

The spelling of 66750334 in words is "sixty-six million, seven hundred fifty thousand, three hundred thirty-four".