53630702640 has 960 divisors, whose sum is σ = 210586521600. Its totient is φ = 12621007872.

The previous prime is 53630702603. The next prime is 53630702647. The reversal of 53630702640 is 4620703635.

53630702640 is a `hidden beast` number, since 5 + 3 + 6 + 3 + 0 + 7 + 0 + 2 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 53630702595 and 53630702604.

It is not an unprimeable number, because it can be changed into a prime (53630702647) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 501221467 + ... + 501221573.

It is an arithmetic number, because the mean of its divisors is an integer number (219360960).

Almost surely, 2^53630702640 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 53630702640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105293260800).

53630702640 is an abundant number, since it is smaller than the sum of its proper divisors (156955818960).

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

53630702640 is a wasteful number, since it uses less digits than its factorization.

53630702640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The spelling of 53630702640 in words is "fifty-three billion, six hundred thirty million, seven hundred two thousand, six hundred forty".