66186485532 has 96 divisors (see below), whose sum is σ = 179495769600. Its totient is φ = 21051017856.

The previous prime is 66186485527. The next prime is 66186485569. The reversal of 66186485532 is 23558468166.

66186485532 is a `hidden beast` number, since 6 + 6 + 1 + 86 + 4 + 8 + 553 + 2 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 983383 + ... + 1048529.

It is an arithmetic number, because the mean of its divisors is an integer number (1869747600).

Almost surely, 2^66186485532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66186485532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89747884800).

66186485532 is an abundant number, since it is smaller than the sum of its proper divisors (113309284068).

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

66186485532 is a wasteful number, since it uses less digits than its factorization.

66186485532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65592 (or 65584 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 54.

The spelling of 66186485532 in words is "sixty-six billion, one hundred eighty-six million, four hundred eighty-five thousand, five hundred thirty-two".