66231532074708 has 432 divisors, whose sum is σ = 236180505899520. Its totient is φ = 15367438195200.

The previous prime is 66231532074623. The next prime is 66231532074727. The reversal of 66231532074708 is 80747023513266.

It is a happy number.

66231532074708 is a `hidden beast` number, since 6 + 6 + 2 + 31 + 532 + 0 + 7 + 4 + 70 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3584958 + ... + 12054666.

Almost surely, 2^{66231532074708} 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 66231532074708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118090252949760).

66231532074708 is an abundant number, since it is smaller than the sum of its proper divisors (169948973824812).

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

66231532074708 is a wasteful number, since it uses less digits than its factorization.

66231532074708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8469788 (or 8469776 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 66231532074708 in words is "sixty-six trillion, two hundred thirty-one billion, five hundred thirty-two million, seventy-four thousand, seven hundred eight".