16129692161 has 12 divisors (see below), whose sum is σ = 17835517056. Its totient is φ = 14575533720.

The previous prime is 16129692107. The next prime is 16129692179.

16129692161 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-16129692161 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16129691161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 378905 + ... + 419318.

It is an arithmetic number, because the mean of its divisors is an integer number (1486293088).

Almost surely, 2^16129692161 is an apocalyptic number.

16129692161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16129692161 is a deficient number, since it is larger than the sum of its proper divisors (1705824895).

16129692161 is a wasteful number, since it uses less digits than its factorization.

16129692161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798412 (or 798401 counting only the distinct ones).

The product of its digits is 69984, while the sum is 44.

The spelling of 16129692161 in words is "sixteen billion, one hundred twenty-nine million, six hundred ninety-two thousand, one hundred sixty-one".