66354116 has 12 divisors (see below), whose sum is σ = 116451132. Its totient is φ = 33082368.

The previous prime is 66354107. The next prime is 66354139. The reversal of 66354116 is 61145366.

It can be written as a sum of positive squares in 2 ways, for example, as 12390400 + 53963716 = 3520^2 + 7346^2 .

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, 22085 + ... + 24908.

It is an arithmetic number, because the mean of its divisors is an integer number (9704261).

Almost surely, 2^66354116 is an apocalyptic number.

It is an amenable number.

66354116 is a deficient number, since it is larger than the sum of its proper divisors (50097016).

66354116 is a wasteful number, since it uses less digits than its factorization.

66354116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47350 (or 47348 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 66354116 is about 8145.8035822134. The cubic root of 66354116 is about 404.8454747586.

The spelling of 66354116 in words is "sixty-six million, three hundred fifty-four thousand, one hundred sixteen".