66327072085530 has 128 divisors (see below), whose sum is σ = 177067383091200. Its totient is φ = 17667704865600.

The previous prime is 66327072085471. The next prime is 66327072085559. The reversal of 66327072085530 is 3558027072366.

It is a happy number.

66327072085530 is a `hidden beast` number, since 6 + 6 + 3 + 2 + 7 + 0 + 7 + 20 + 85 + 530 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3360194401 + ... + 3360214139.

It is an arithmetic number, because the mean of its divisors is an integer number (1383338930400).

Almost surely, 2^{66327072085530} is an apocalyptic number.

66327072085530 is an abundant number, since it is smaller than the sum of its proper divisors (110740311005670).

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

66327072085530 is a wasteful number, since it uses less digits than its factorization.

66327072085530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32857 (or 32851 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 54.

The spelling of 66327072085530 in words is "sixty-six trillion, three hundred twenty-seven billion, seventy-two million, eighty-five thousand, five hundred thirty".