66013284855 has 96 divisors (see below), whose sum is σ = 124106273280. Its totient is φ = 29873975040.

The previous prime is 66013284833. The next prime is 66013284947. The reversal of 66013284855 is 55848231066.

It is a happy number.

It is not a de Polignac number, because 66013284855 - 2¹⁴ = 66013268471 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 68265582 + ... + 68266548.

It is an arithmetic number, because the mean of its divisors is an integer number (1292773680).

Almost surely, 2^66013284855 is an apocalyptic number.

66013284855 is a deficient number, since it is larger than the sum of its proper divisors (58092988425).

66013284855 is a wasteful number, since it uses less digits than its factorization.

66013284855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829 (or 1822 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 66013284855 in words is "sixty-six billion, thirteen million, two hundred eighty-four thousand, eight hundred fifty-five".