1630232347128 has 256 divisors, whose sum is σ = 5135056404480. Its totient is φ = 418958400000.

The previous prime is 1630232347043. The next prime is 1630232347147. The reversal of 1630232347128 is 8217432320361.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1630232347128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 483603283 + ... + 483606653.

It is an arithmetic number, because the mean of its divisors is an integer number (20058814080).

Almost surely, 2^{1630232347128} 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 1630232347128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2567528202240).

1630232347128 is an abundant number, since it is smaller than the sum of its proper divisors (3504824057352).

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

1630232347128 is a wasteful number, since it uses less digits than its factorization.

1630232347128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6090 (or 6086 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

Adding to 1630232347128 its reverse (8217432320361), we get a palindrome (9847664667489).

The spelling of 1630232347128 in words is "one trillion, six hundred thirty billion, two hundred thirty-two million, three hundred forty-seven thousand, one hundred twenty-eight".