20637575208950 has 48 divisors (see below), whose sum is σ = 45776961872640. Its totient is φ = 6768099196320.

The previous prime is 20637575208949. The next prime is 20637575208959. The reversal of 20637575208950 is 5980257573602.

It is a self number, because there is not a number n which added to its sum of digits gives 20637575208950.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20637575208959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1281828920 + ... + 1281845019.

It is an arithmetic number, because the mean of its divisors is an integer number (953686705680).

Almost surely, 2^{20637575208950} is an apocalyptic number.

20637575208950 is an abundant number, since it is smaller than the sum of its proper divisors (25139386663690).

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

20637575208950 is a wasteful number, since it uses less digits than its factorization.

20637575208950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2563673981 (or 2563673976 counting only the distinct ones).

The product of its (nonzero) digits is 31752000, while the sum is 59.

The spelling of 20637575208950 in words is "twenty trillion, six hundred thirty-seven billion, five hundred seventy-five million, two hundred eight thousand, nine hundred fifty".