66060211932 has 216 divisors, whose sum is σ = 204568116480. Its totient is φ = 18477875520.

The previous prime is 66060211909. The next prime is 66060211933. The reversal of 66060211932 is 23911206066.

It is a happy number.

66060211932 is a `hidden beast` number, since 6 + 6 + 0 + 602 + 1 + 19 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66060211933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1788669 + ... + 1825227.

Almost surely, 2^66060211932 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 66060211932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102284058240).

66060211932 is an abundant number, since it is smaller than the sum of its proper divisors (138507904548).

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

66060211932 is a wasteful number, since it uses less digits than its factorization.

66060211932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36615 (or 36588 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

Adding to 66060211932 its reverse (23911206066), we get a palindrome (89971417998).

The spelling of 66060211932 in words is "sixty-six billion, sixty million, two hundred eleven thousand, nine hundred thirty-two".