20935235205 has 48 divisors (see below), whose sum is σ = 37761197760. Its totient is φ = 10720894464.

The previous prime is 20935235147. The next prime is 20935235207. The reversal of 20935235205 is 50253253902.

20935235205 is a `hidden beast` number, since 20 + 93 + 5 + 23 + 520 + 5 = 666.

It is not a de Polignac number, because 20935235205 - 2⁶ = 20935235141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20935235205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20935235207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22477 + ... + 205853.

It is an arithmetic number, because the mean of its divisors is an integer number (786691620).

Almost surely, 2^20935235205 is an apocalyptic number.

It is an amenable number.

20935235205 is a deficient number, since it is larger than the sum of its proper divisors (16825962555).

20935235205 is a wasteful number, since it uses less digits than its factorization.

20935235205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183490 (or 183487 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The spelling of 20935235205 in words is "twenty billion, nine hundred thirty-five million, two hundred thirty-five thousand, two hundred five".