66105316 has 12 divisors (see below), whose sum is σ = 122489388. Its totient is φ = 31108352.

The previous prime is 66105293. The next prime is 66105329. The reversal of 66105316 is 61350166.

It can be written as a sum of positive squares in 2 ways, for example, as 34857216 + 31248100 = 5904^2 + 5590^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486001 + ... + 486136.

It is an arithmetic number, because the mean of its divisors is an integer number (10207449).

Almost surely, 2^66105316 is an apocalyptic number.

It is an amenable number.

66105316 is a deficient number, since it is larger than the sum of its proper divisors (56384072).

66105316 is a wasteful number, since it uses less digits than its factorization.

66105316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972158 (or 972156 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 66105316 is about 8130.5175727010. The cubic root of 66105316 is about 404.3388409786.

It can be divided in two parts, 66 and 105316, that multiplied together give a triangular number (6950856 = T₃₇₂₈).

The spelling of 66105316 in words is "sixty-six million, one hundred five thousand, three hundred sixteen".