654565983630 has 256 divisors, whose sum is σ = 1874476670976. Its totient is φ = 144740597760.

The previous prime is 654565983571. The next prime is 654565983683. The reversal of 654565983630 is 36389565456.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 14981877 + ... + 15025503.

It is an arithmetic number, because the mean of its divisors is an integer number (7322174496).

Almost surely, 2^654565983630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654565983630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (937238335488).

654565983630 is an abundant number, since it is smaller than the sum of its proper divisors (1219910687346).

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

654565983630 is a wasteful number, since it uses less digits than its factorization.

654565983630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43771.

The product of its (nonzero) digits is 69984000, while the sum is 60.

The spelling of 654565983630 in words is "six hundred fifty-four billion, five hundred sixty-five million, nine hundred eighty-three thousand, six hundred thirty".