33493666666 has 4 divisors (see below), whose sum is σ = 50240500002. Its totient is φ = 16746833332.

The previous prime is 33493666651. The next prime is 33493666673. The reversal of 33493666666 is 66666639433.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66666639433 = 607 ⋅109829719.

It can be written as a sum of positive squares in only one way, i.e., 32896890625 + 596776041 = 181375^2 + 24429^2 .

It is a super-2 number, since 2×33493666666² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33493666666.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8373416665 + ... + 8373416668.

Almost surely, 2^33493666666 is an apocalyptic number.

33493666666 is a deficient number, since it is larger than the sum of its proper divisors (16746833336).

33493666666 is a wasteful number, since it uses less digits than its factorization.

33493666666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16746833335.

The product of its digits is 45349632, while the sum is 58.

The spelling of 33493666666 in words is "thirty-three billion, four hundred ninety-three million, six hundred sixty-six thousand, six hundred sixty-six".