16112621161 has 16 divisors (see below), whose sum is σ = 20126909824. Its totient is φ = 12558167424.

The previous prime is 16112621149. The next prime is 16112621179.

16112621161 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 16112621161 - 2¹¹ = 16112619113 is a prime.

It is the 126936-th Hogben number.

It is not an unprimeable number, because it can be changed into a prime (16112621141) by changing a digit.

It is a nontrivial repunit in base 126935.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1315260 + ... + 1327453.

It is an arithmetic number, because the mean of its divisors is an integer number (1257931864).

Almost surely, 2^16112621161 is an apocalyptic number.

It is an amenable number.

16112621161 is a deficient number, since it is larger than the sum of its proper divisors (4014288663).

16112621161 is a wasteful number, since it uses less digits than its factorization.

16112621161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642800.

The product of its digits is 864, while the sum is 28.

The spelling of 16112621161 in words is "sixteen billion, one hundred twelve million, six hundred twenty-one thousand, one hundred sixty-one".