66050660 has 24 divisors (see below), whose sum is σ = 149376696. Its totient is φ = 24387840.

The previous prime is 66050659. The next prime is 66050681. The reversal of 66050660 is 6605066.

It can be written as a sum of positive squares in 4 ways, for example, as 15697444 + 50353216 = 3962^2 + 7096^2 .

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

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, 126761 + ... + 127280.

It is an arithmetic number, because the mean of its divisors is an integer number (6224029).

Almost surely, 2^66050660 is an apocalyptic number.

It is an amenable number.

66050660 is an abundant number, since it is smaller than the sum of its proper divisors (83326036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66050660 is a wasteful number, since it uses less digits than its factorization.

66050660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254063 (or 254061 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 66050660 is about 8127.1557140244. The cubic root of 66050660 is about 404.2273742138.

The spelling of 66050660 in words is "sixty-six million, fifty thousand, six hundred sixty".