66064066 has 16 divisors (see below), whose sum is σ = 100679040. Its totient is φ = 32507280.

The previous prime is 66064049. The next prime is 66064087. The reversal of 66064066 is 66046066.

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, 72385 + ... + 73291.

It is an arithmetic number, because the mean of its divisors is an integer number (6292440).

Almost surely, 2^66064066 is an apocalyptic number.

66064066 is a deficient number, since it is larger than the sum of its proper divisors (34614974).

66064066 is a wasteful number, since it uses less digits than its factorization.

66064066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 66064066 is about 8127.9804379686. The cubic root of 66064066 is about 404.2547204234.

The spelling of 66064066 in words is "sixty-six million, sixty-four thousand, sixty-six", and thus it is an eban number.