20355526874 has 16 divisors (see below), whose sum is σ = 30599402400. Its totient is φ = 10155746640.

The previous prime is 20355526871. The next prime is 20355526897. The reversal of 20355526874 is 47862555302.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20355526871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2695544 + ... + 2703084.

It is an arithmetic number, because the mean of its divisors is an integer number (1912462650).

Almost surely, 2^20355526874 is an apocalyptic number.

20355526874 is a deficient number, since it is larger than the sum of its proper divisors (10243875526).

20355526874 is a wasteful number, since it uses less digits than its factorization.

20355526874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10285.

The product of its (nonzero) digits is 2016000, while the sum is 47.

The spelling of 20355526874 in words is "twenty billion, three hundred fifty-five million, five hundred twenty-six thousand, eight hundred seventy-four".