66003208860 has 48 divisors (see below), whose sum is σ = 187411940352. Its totient is φ = 17352955200.

The previous prime is 66003208853. The next prime is 66003208879. The reversal of 66003208860 is 6880230066.

66003208860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7742596 + ... + 7751115.

It is an arithmetic number, because the mean of its divisors is an integer number (3904415424).

Almost surely, 2^66003208860 is an apocalyptic number.

66003208860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66003208860 is an abundant number, since it is smaller than the sum of its proper divisors (121408731492).

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

66003208860 is a wasteful number, since it uses less digits than its factorization.

66003208860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15493794 (or 15493792 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 66003208860 in words is "sixty-six billion, three million, two hundred eight thousand, eight hundred sixty".