1630997752320 has 800 divisors, whose sum is σ = 6054141367296. Its totient is φ = 419232153600.

The previous prime is 1630997752277. The next prime is 1630997752333. The reversal of 1630997752320 is 232577990361.

1630997752320 is a `hidden beast` number, since 1 + 6 + 3 + 0 + 9 + 97 + 7 + 523 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3130513660 + ... + 3130514180.

Almost surely, 2^{1630997752320} is an apocalyptic number.

1630997752320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1630997752320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3027070683648).

1630997752320 is an abundant number, since it is smaller than the sum of its proper divisors (4423143614976).

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

1630997752320 is an equidigital number, since it uses as much as digits as its factorization.

1630997752320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074 (or 1049 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The spelling of 1630997752320 in words is "one trillion, six hundred thirty billion, nine hundred ninety-seven million, seven hundred fifty-two thousand, three hundred twenty".