20457304116 has 24 divisors (see below), whose sum is σ = 49273507584. Its totient is φ = 6599130240.

The previous prime is 20457304103. The next prime is 20457304151. The reversal of 20457304116 is 61140375402.

It is a congruent number.

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, 27496005 + ... + 27496748.

It is an arithmetic number, because the mean of its divisors is an integer number (2053062816).

Almost surely, 2^20457304116 is an apocalyptic number.

It is an amenable number.

20457304116 is an abundant number, since it is smaller than the sum of its proper divisors (28816203468).

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

20457304116 is a wasteful number, since it uses less digits than its factorization.

20457304116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54992791 (or 54992789 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

Adding to 20457304116 its reverse (61140375402), we get a palindrome (81597679518).

The spelling of 20457304116 in words is "twenty billion, four hundred fifty-seven million, three hundred four thousand, one hundred sixteen".