66909233044032 has 56 divisors (see below), whose sum is σ = 177513051705216. Its totient is φ = 22242306329088.

The previous prime is 66909233044009. The next prime is 66909233044099. The reversal of 66909233044032 is 23044033290966.

It is a happy number.

It is a super-3 number, since 3×66909233044032³ (a number of 42 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474705543 + ... + 474846470.

Almost surely, 2^{66909233044032} is an apocalyptic number.

It is an amenable number.

66909233044032 is an abundant number, since it is smaller than the sum of its proper divisors (110603818661184).

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

66909233044032 is a wasteful number, since it uses less digits than its factorization.

66909233044032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949552395 (or 949552385 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 51.

The spelling of 66909233044032 in words is "sixty-six trillion, nine hundred nine billion, two hundred thirty-three million, forty-four thousand, thirty-two".