20612705556250 has 48 divisors (see below), whose sum is σ = 38656137848832. Its totient is φ = 8242993890000.

The previous prime is 20612705556217. The next prime is 20612705556307. The reversal of 20612705556250 is 5265550721602.

It is a self number, because there is not a number n which added to its sum of digits gives 20612705556250.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24378067 + ... + 25209433.

It is an arithmetic number, because the mean of its divisors is an integer number (805336205184).

Almost surely, 2^{20612705556250} is an apocalyptic number.

20612705556250 is a deficient number, since it is larger than the sum of its proper divisors (18043432292582).

20612705556250 is an frugal number, since it uses more digits than its factorization.

20612705556250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835361 (or 835341 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 46.

The spelling of 20612705556250 in words is "twenty trillion, six hundred twelve billion, seven hundred five million, five hundred fifty-six thousand, two hundred fifty".