16384367961 has 16 divisors (see below), whose sum is σ = 26140302720. Its totient is φ = 10082687760.

The previous prime is 16384367957. The next prime is 16384368019. The reversal of 16384367961 is 16976348361.

It is a happy number.

It is not a de Polignac number, because 16384367961 - 2² = 16384367957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16384367898 and 16384367907.

It is not an unprimeable number, because it can be changed into a prime (16384360961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23339205 + ... + 23339906.

It is an arithmetic number, because the mean of its divisors is an integer number (1633768920).

Almost surely, 2^16384367961 is an apocalyptic number.

It is an amenable number.

16384367961 is a deficient number, since it is larger than the sum of its proper divisors (9755934759).

16384367961 is a wasteful number, since it uses less digits than its factorization.

16384367961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46679133 (or 46679127 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 16384367961 in words is "sixteen billion, three hundred eighty-four million, three hundred sixty-seven thousand, nine hundred sixty-one".