66870223180 has 48 divisors (see below), whose sum is σ = 149109387840. Its totient is φ = 25103310848.

The previous prime is 66870223153. The next prime is 66870223183. The reversal of 66870223180 is 8132207866.

It is not an unprimeable number, because it can be changed into a prime (66870223183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158560 + ... + 398599.

It is an arithmetic number, because the mean of its divisors is an integer number (3106445580).

Almost surely, 2^66870223180 is an apocalyptic number.

It is an amenable number.

66870223180 is an abundant number, since it is smaller than the sum of its proper divisors (82239164660).

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

66870223180 is a wasteful number, since it uses less digits than its factorization.

66870223180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557538 (or 557536 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 66870223180 in words is "sixty-six billion, eight hundred seventy million, two hundred twenty-three thousand, one hundred eighty".