66012941830 has 16 divisors (see below), whose sum is σ = 129625413264. Its totient is φ = 24004706080.

The previous prime is 66012941807. The next prime is 66012941837. The reversal of 66012941830 is 3814921066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66012941837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300058717 + ... + 300058936.

It is an arithmetic number, because the mean of its divisors is an integer number (8101588329).

Almost surely, 2^66012941830 is an apocalyptic number.

66012941830 is a deficient number, since it is larger than the sum of its proper divisors (63612471434).

66012941830 is a wasteful number, since it uses less digits than its factorization.

66012941830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600117671.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 66012941830 in words is "sixty-six billion, twelve million, nine hundred forty-one thousand, eight hundred thirty".