66883633410 has 64 divisors (see below), whose sum is σ = 178839373824. Its totient is φ = 15869227200.

The previous prime is 66883633343. The next prime is 66883633417. The reversal of 66883633410 is 1433638866.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 66883633410.

It is not an unprimeable number, because it can be changed into a prime (66883633417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2140636 + ... + 2171655.

It is an arithmetic number, because the mean of its divisors is an integer number (2794365216).

Almost surely, 2^66883633410 is an apocalyptic number.

66883633410 is an abundant number, since it is smaller than the sum of its proper divisors (111955740414).

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

66883633410 is a wasteful number, since it uses less digits than its factorization.

66883633410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4312359.

The product of its (nonzero) digits is 1492992, while the sum is 48.

The spelling of 66883633410 in words is "sixty-six billion, eight hundred eighty-three million, six hundred thirty-three thousand, four hundred ten".