66480066306026 has 4 divisors (see below), whose sum is σ = 99720099459042. Its totient is φ = 33240033153012.

The previous prime is 66480066306001. The next prime is 66480066306077. The reversal of 66480066306026 is 62060366008466.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 58339059276001 + 8141007030025 = 7638001^2 + 2853245^2 .

It is a super-2 number, since 2×66480066306026² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16620016576505 + ... + 16620016576508.

Almost surely, 2^{66480066306026} is an apocalyptic number.

66480066306026 is a deficient number, since it is larger than the sum of its proper divisors (33240033153016).

66480066306026 is a wasteful number, since it uses less digits than its factorization.

66480066306026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33240033153015.

The product of its (nonzero) digits is 8957952, while the sum is 53.

The spelling of 66480066306026 in words is "sixty-six trillion, four hundred eighty billion, sixty-six million, three hundred six thousand, twenty-six".