20332330320 has 40 divisors (see below), whose sum is σ = 63030224736. Its totient is φ = 5421954688.

The previous prime is 20332330309. The next prime is 20332330321. The reversal of 20332330320 is 2303323302.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20332330321) 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, 42358782 + ... + 42359261.

Almost surely, 2^20332330320 is an apocalyptic number.

20332330320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20332330320 is an abundant number, since it is smaller than the sum of its proper divisors (42697894416).

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

20332330320 is a wasteful number, since it uses less digits than its factorization.

20332330320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84718059 (or 84718053 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 21.

Adding to 20332330320 its reverse (2303323302), we get a palindrome (22635653622).

The spelling of 20332330320 in words is "twenty billion, three hundred thirty-two million, three hundred thirty thousand, three hundred twenty".