20530413344 has 48 divisors (see below), whose sum is σ = 46617278400. Its totient is φ = 8718015744.

The previous prime is 20530413331. The next prime is 20530413353. The reversal of 20530413344 is 44331403502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396014 + ... + 444845.

It is an arithmetic number, because the mean of its divisors is an integer number (971193300).

Almost surely, 2^20530413344 is an apocalyptic number.

It is an amenable number.

20530413344 is an abundant number, since it is smaller than the sum of its proper divisors (26086865056).

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

20530413344 is a wasteful number, since it uses less digits than its factorization.

20530413344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840985 (or 840977 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 20530413344 its reverse (44331403502), we get a palindrome (64861816846).

The spelling of 20530413344 in words is "twenty billion, five hundred thirty million, four hundred thirteen thousand, three hundred forty-four".