20942152234 has 16 divisors (see below), whose sum is σ = 32783771520. Its totient is φ = 10014360400.

The previous prime is 20942152213. The next prime is 20942152291. The reversal of 20942152234 is 43225124902.

It is a self number, because there is not a number n which added to its sum of digits gives 20942152234.

It is an unprimeable number.

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, 331059 + ... + 389209.

It is an arithmetic number, because the mean of its divisors is an integer number (2048985720).

Almost surely, 2^20942152234 is an apocalyptic number.

20942152234 is a deficient number, since it is larger than the sum of its proper divisors (11841619286).

20942152234 is a wasteful number, since it uses less digits than its factorization.

20942152234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66005.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 20942152234 in words is "twenty billion, nine hundred forty-two million, one hundred fifty-two thousand, two hundred thirty-four".