20124344464 has 40 divisors (see below), whose sum is σ = 44746009088. Its totient is φ = 8588920320.

The previous prime is 20124344447. The next prime is 20124344479. The reversal of 20124344464 is 46444342102.

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, 345792 + ... + 399775.

Almost surely, 2^20124344464 is an apocalyptic number.

It is an amenable number.

20124344464 is an abundant number, since it is smaller than the sum of its proper divisors (24621664624).

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

20124344464 is a wasteful number, since it uses less digits than its factorization.

20124344464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745823 (or 745817 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 20124344464 its reverse (46444342102), we get a palindrome (66568686566).

The spelling of 20124344464 in words is "twenty billion, one hundred twenty-four million, three hundred forty-four thousand, four hundred sixty-four".