20071428162322 has 4 divisors (see below), whose sum is σ = 30107142243486. Its totient is φ = 10035714081160.

The previous prime is 20071428162319. The next prime is 20071428162343. The reversal of 20071428162322 is 22326182417002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17177452195761 + 2893975966561 = 4144569^2 + 1701169^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 as a sum of consecutive naturals, namely, 5017857040579 + ... + 5017857040582.

Almost surely, 2^{20071428162322} is an apocalyptic number.

20071428162322 is a deficient number, since it is larger than the sum of its proper divisors (10035714081164).

20071428162322 is a wasteful number, since it uses less digits than its factorization.

20071428162322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10035714081163.

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 20071428162322 in words is "twenty trillion, seventy-one billion, four hundred twenty-eight million, one hundred sixty-two thousand, three hundred twenty-two".