16404040461 has 16 divisors (see below), whose sum is σ = 21930157760. Its totient is φ = 10907015040.

The previous prime is 16404040417. The next prime is 16404040463.

16404040461 is nontrivially palindromic in base 10.

16404040461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16404040461 - 2¹⁸ = 16403778317 is a prime.

It is a super-2 number, since 2×16404040461² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16404040463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1965345 + ... + 1973673.

It is an arithmetic number, because the mean of its divisors is an integer number (1370634860).

Almost surely, 2^16404040461 is an apocalyptic number.

It is an amenable number.

16404040461 is a deficient number, since it is larger than the sum of its proper divisors (5526117299).

16404040461 is a wasteful number, since it uses less digits than its factorization.

16404040461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9996.

The product of its (nonzero) digits is 9216, while the sum is 30.

The spelling of 16404040461 in words is "sixteen billion, four hundred four million, forty thousand, four hundred sixty-one".