66662830080 has 1404 divisors, whose sum is σ = 300296115756. Its totient is φ = 13624934400.

The previous prime is 66662830009. The next prime is 66662830097. The reversal of 66662830080 is 8003826666.

It can be written as a sum of positive squares in 2 ways, for example, as 10709766144 + 55953063936 = 103488^2 + 236544^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1092833250 + ... + 1092833310.

Almost surely, 2^66662830080 is an apocalyptic number.

66662830080 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 66662830080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150148057878).

66662830080 is an abundant number, since it is smaller than the sum of its proper divisors (233633285676).

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

66662830080 is a wasteful number, since it uses less digits than its factorization.

66662830080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 66662830080 in words is "sixty-six billion, six hundred sixty-two million, eight hundred thirty thousand, eighty".