66676405180 has 96 divisors (see below), whose sum is σ = 180202401792. Its totient is φ = 20111846400.

The previous prime is 66676405153. The next prime is 66676405247. The reversal of 66676405180 is 8150467666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 650589 + ... + 746068.

It is an arithmetic number, because the mean of its divisors is an integer number (1877108352).

Almost surely, 2^66676405180 is an apocalyptic number.

It is an amenable number.

66676405180 is an abundant number, since it is smaller than the sum of its proper divisors (113525996612).

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

66676405180 is a wasteful number, since it uses less digits than its factorization.

66676405180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396715 (or 1396713 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 66676405180 in words is "sixty-six billion, six hundred seventy-six million, four hundred five thousand, one hundred eighty".