16541454404 has 12 divisors (see below), whose sum is σ = 29020463724. Its totient is φ = 8249893344.

The previous prime is 16541454403. The next prime is 16541454407. The reversal of 16541454404 is 40445414561.

It can be written as a sum of positive squares in 2 ways, for example, as 14237262400 + 2304192004 = 119320^2 + 48002^2 .

It is a super-2 number, since 2×16541454404² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16541454403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5206679 + ... + 5209854.

It is an arithmetic number, because the mean of its divisors is an integer number (2418371977).

Almost surely, 2^16541454404 is an apocalyptic number.

It is an amenable number.

16541454404 is a deficient number, since it is larger than the sum of its proper divisors (12479009320).

16541454404 is a wasteful number, since it uses less digits than its factorization.

16541454404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10416934 (or 10416932 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 38.

Adding to 16541454404 its reverse (40445414561), we get a palindrome (56986868965).

The spelling of 16541454404 in words is "sixteen billion, five hundred forty-one million, four hundred fifty-four thousand, four hundred four".