630531102656 has 112 divisors (see below), whose sum is σ = 1540277075904. Its totient is φ = 249388056576.

The previous prime is 630531102653. The next prime is 630531102679. The reversal of 630531102656 is 656201135036.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630531102653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38738936 + ... + 38755208.

It is an arithmetic number, because the mean of its divisors is an integer number (13752473892).

Almost surely, 2^630531102656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630531102656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (770138537952).

630531102656 is an abundant number, since it is smaller than the sum of its proper divisors (909745973248).

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

630531102656 is a wasteful number, since it uses less digits than its factorization.

630531102656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22958 (or 22948 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 38.

The spelling of 630531102656 in words is "six hundred thirty billion, five hundred thirty-one million, one hundred two thousand, six hundred fifty-six".