20015242416 has 60 divisors (see below), whose sum is σ = 60323722368. Its totient is φ = 6158535552.

The previous prime is 20015242397. The next prime is 20015242453. The reversal of 20015242416 is 61424251002.

20015242416 is a `hidden beast` number, since 2 + 0 + 0 + 1 + 5 + 242 + 416 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 20015242416.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5344080 + ... + 5347823.

Almost surely, 2^20015242416 is an apocalyptic number.

20015242416 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20015242416 is an abundant number, since it is smaller than the sum of its proper divisors (40308479952).

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

20015242416 is a wasteful number, since it uses less digits than its factorization.

20015242416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10691930 (or 10691921 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 20015242416 its reverse (61424251002), we get a palindrome (81439493418).

The spelling of 20015242416 in words is "twenty billion, fifteen million, two hundred forty-two thousand, four hundred sixteen".