66564666030 has 64 divisors (see below), whose sum is σ = 172751616000. Its totient is φ = 16350964224.

The previous prime is 66564666029. The next prime is 66564666037. The reversal of 66564666030 is 3066646566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66564666037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1364530 + ... + 1412469.

It is an arithmetic number, because the mean of its divisors is an integer number (2699244000).

Almost surely, 2^66564666030 is an apocalyptic number.

66564666030 is an abundant number, since it is smaller than the sum of its proper divisors (106186949970).

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

66564666030 is a wasteful number, since it uses less digits than its factorization.

66564666030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777073.

The product of its (nonzero) digits is 2799360, while the sum is 48.

The spelling of 66564666030 in words is "sixty-six billion, five hundred sixty-four million, six hundred sixty-six thousand, thirty".