16235422161 has 16 divisors (see below), whose sum is σ = 26194967424. Its totient is φ = 8731655424.

The previous prime is 16235422153. The next prime is 16235422169. The reversal of 16235422161 is 16122453261.

It is an interprime number because it is at equal distance from previous prime (16235422153) and next prime (16235422169).

It is not a de Polignac number, because 16235422161 - 2³ = 16235422153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16235422169) 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, 22738330 + ... + 22739043.

It is an arithmetic number, because the mean of its divisors is an integer number (1637185464).

Almost surely, 2^16235422161 is an apocalyptic number.

It is an amenable number.

16235422161 is a deficient number, since it is larger than the sum of its proper divisors (9959545263).

16235422161 is a wasteful number, since it uses less digits than its factorization.

16235422161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45477400.

The product of its digits is 17280, while the sum is 33.

The spelling of 16235422161 in words is "sixteen billion, two hundred thirty-five million, four hundred twenty-two thousand, one hundred sixty-one".