66287914280 has 32 divisors (see below), whose sum is σ = 170454637440. Its totient is φ = 22727284800.

The previous prime is 66287914261. The next prime is 66287914291. The reversal of 66287914280 is 8241978266.

66287914280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118370996 + ... + 118371555.

It is an arithmetic number, because the mean of its divisors is an integer number (5326707420).

Almost surely, 2^66287914280 is an apocalyptic number.

It is an amenable number.

66287914280 is an abundant number, since it is smaller than the sum of its proper divisors (104166723160).

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

66287914280 is a wasteful number, since it uses less digits than its factorization.

66287914280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236742569 (or 236742565 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 66287914280 in words is "sixty-six billion, two hundred eighty-seven million, nine hundred fourteen thousand, two hundred eighty".