66523424630 has 64 divisors (see below), whose sum is σ = 134616867840. Its totient is φ = 23484590976.

The previous prime is 66523424623. The next prime is 66523424633. The reversal of 66523424630 is 3642432566.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66523424633) 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, 13521311 + ... + 13526229.

It is an arithmetic number, because the mean of its divisors is an integer number (2103388560).

Almost surely, 2^66523424630 is an apocalyptic number.

66523424630 is an abundant number, since it is smaller than the sum of its proper divisors (68093443210).

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

66523424630 is a wasteful number, since it uses less digits than its factorization.

66523424630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9485.

The product of its (nonzero) digits is 622080, while the sum is 41.

The spelling of 66523424630 in words is "sixty-six billion, five hundred twenty-three million, four hundred twenty-four thousand, six hundred thirty".