65606626830 has 64 divisors (see below), whose sum is σ = 161360252928. Its totient is φ = 17061623040.

The previous prime is 65606626829. The next prime is 65606626843. The reversal of 65606626830 is 3862660656.

It is a self number, because there is not a number n which added to its sum of digits gives 65606626830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3591099 + ... + 3609321.

It is an arithmetic number, because the mean of its divisors is an integer number (2521253952).

Almost surely, 2^65606626830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65606626830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80680126464).

65606626830 is an abundant number, since it is smaller than the sum of its proper divisors (95753626098).

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

65606626830 is a wasteful number, since it uses less digits than its factorization.

65606626830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21201.

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 65606626830 in words is "sixty-five billion, six hundred six million, six hundred twenty-six thousand, eight hundred thirty".