66037530000 has 200 divisors, whose sum is σ = 229577611648. Its totient is φ = 16255296000.

The previous prime is 66037529989. The next prime is 66037530001. The reversal of 66037530000 is 3573066.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 66037530000.

It is not an unprimeable number, because it can be changed into a prime (66037530001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 305337 + ... + 474663.

Almost surely, 2^66037530000 is an apocalyptic number.

66037530000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66037530000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114788805824).

66037530000 is an abundant number, since it is smaller than the sum of its proper divisors (163540081648).

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

66037530000 is a wasteful number, since it uses less digits than its factorization.

66037530000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169371 (or 169350 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 30.

The spelling of 66037530000 in words is "sixty-six billion, thirty-seven million, five hundred thirty thousand".