20502312312512 has 14 divisors (see below), whose sum is σ = 40684275995268. Its totient is φ = 10251156156224.

The previous prime is 20502312312421. The next prime is 20502312312533. The reversal of 20502312312512 is 21521321320502.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160174314878 + ... + 160174315005.

Almost surely, 2^{20502312312512} is an apocalyptic number.

It is an amenable number.

20502312312512 is a deficient number, since it is larger than the sum of its proper divisors (20181963682756).

20502312312512 is an equidigital number, since it uses as much as digits as its factorization.

20502312312512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320348629895 (or 320348629885 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 20502312312512 in words is "twenty trillion, five hundred two billion, three hundred twelve million, three hundred twelve thousand, five hundred twelve".