66600536830 has 32 divisors (see below), whose sum is σ = 123108387840. Its totient is φ = 25932510240.

The previous prime is 66600536813. The next prime is 66600536831. The reversal of 66600536830 is 3863500666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66600536831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537604 + ... + 649783.

It is an arithmetic number, because the mean of its divisors is an integer number (3847137120).

Almost surely, 2^66600536830 is an apocalyptic number.

66600536830 is a deficient number, since it is larger than the sum of its proper divisors (56507851010).

66600536830 is a wasteful number, since it uses less digits than its factorization.

66600536830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187544.

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 66600536830 in words is "sixty-six billion, six hundred million, five hundred thirty-six thousand, eight hundred thirty".