630665141640 has 32 divisors (see below), whose sum is σ = 1891995425280. Its totient is φ = 168177371072.

The previous prime is 630665141609. The next prime is 630665141641. The reversal of 630665141640 is 46141566036.

It is a junction number, because it is equal to n+sod(n) for n = 630665141592 and 630665141601.

It is not an unprimeable number, because it can be changed into a prime (630665141641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2627771304 + ... + 2627771543.

It is an arithmetic number, because the mean of its divisors is an integer number (59124857040).

Almost surely, 2^630665141640 is an apocalyptic number.

630665141640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

630665141640 is an abundant number, since it is smaller than the sum of its proper divisors (1261330283640).

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

630665141640 is a wasteful number, since it uses less digits than its factorization.

630665141640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5255542861 (or 5255542857 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 630665141640 in words is "six hundred thirty billion, six hundred sixty-five million, one hundred forty-one thousand, six hundred forty".