16231178526161 has 8 divisors (see below), whose sum is σ = 16571952103680. Its totient is φ = 15891683649712.

The previous prime is 16231178526149. The next prime is 16231178526169. The reversal of 16231178526161 is 16162587113261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16231178526161 - 2⁶ = 16231178526097 is a prime.

It is a super-2 number, since 2×16231178526161² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16231178526169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319649615 + ... + 319700388.

It is an arithmetic number, because the mean of its divisors is an integer number (2071494012960).

Almost surely, 2^{16231178526161} is an apocalyptic number.

It is an amenable number.

16231178526161 is a deficient number, since it is larger than the sum of its proper divisors (340773577519).

16231178526161 is an equidigital number, since it uses as much as digits as its factorization.

16231178526161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639350535.

The product of its digits is 725760, while the sum is 50.

The spelling of 16231178526161 in words is "sixteen trillion, two hundred thirty-one billion, one hundred seventy-eight million, five hundred twenty-six thousand, one hundred sixty-one".