20502346516 has 12 divisors (see below), whose sum is σ = 36282243060. Its totient is φ = 10135991360.

The previous prime is 20502346499. The next prime is 20502346523. The reversal of 20502346516 is 61564320502.

It can be written as a sum of positive squares in 2 ways, for example, as 6151264900 + 14351081616 = 78430^2 + 119796^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28795075 + ... + 28795786.

It is an arithmetic number, because the mean of its divisors is an integer number (3023520255).

Almost surely, 2^20502346516 is an apocalyptic number.

It is an amenable number.

20502346516 is a deficient number, since it is larger than the sum of its proper divisors (15779896544).

20502346516 is a wasteful number, since it uses less digits than its factorization.

20502346516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57590954 (or 57590952 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 20502346516 in words is "twenty billion, five hundred two million, three hundred forty-six thousand, five hundred sixteen".