20417616824 has 16 divisors (see below), whose sum is σ = 41763307320. Its totient is φ = 9280734880.

The previous prime is 20417616823. The next prime is 20417616827. The reversal of 20417616824 is 42861671402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20417616823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116009099 + ... + 116009274.

Almost surely, 2^20417616824 is an apocalyptic number.

It is an amenable number.

20417616824 is an abundant number, since it is smaller than the sum of its proper divisors (21345690496).

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

20417616824 is a wasteful number, since it uses less digits than its factorization.

20417616824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232018390 (or 232018386 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 20417616824 in words is "twenty billion, four hundred seventeen million, six hundred sixteen thousand, eight hundred twenty-four".