20630343360 has 224 divisors, whose sum is σ = 71595032832. Its totient is φ = 4991569920.

The previous prime is 20630343359. The next prime is 20630343389. The reversal of 20630343360 is 6334303602.

It is a super-2 number, since 2×20630343360² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6471687 + ... + 6474873.

Almost surely, 2^20630343360 is an apocalyptic number.

20630343360 is a gapful number since it is divisible by the number (20) 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 20630343360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35797516416).

20630343360 is an abundant number, since it is smaller than the sum of its proper divisors (50964689472).

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

20630343360 is a wasteful number, since it uses less digits than its factorization.

20630343360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3831 (or 3821 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 30.

Adding to 20630343360 its reverse (6334303602), we get a palindrome (26964646962).

The spelling of 20630343360 in words is "twenty billion, six hundred thirty million, three hundred forty-three thousand, three hundred sixty".