20775368354 has 32 divisors (see below), whose sum is σ = 34503406896. Its totient is φ = 9319691520.

The previous prime is 20775368353. The next prime is 20775368357. The reversal of 20775368354 is 45386357702.

It can be written as a sum of positive squares in 8 ways, for example, as 13228450225 + 7546918129 = 115015^2 + 86873^2 .

It is not an unprimeable number, because it can be changed into a prime (20775368353) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 948284 + ... + 969944.

Almost surely, 2^20775368354 is an apocalyptic number.

20775368354 is a deficient number, since it is larger than the sum of its proper divisors (13728038542).

20775368354 is a wasteful number, since it uses less digits than its factorization.

20775368354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22710.

The product of its (nonzero) digits is 4233600, while the sum is 50.

The spelling of 20775368354 in words is "twenty billion, seven hundred seventy-five million, three hundred sixty-eight thousand, three hundred fifty-four".