16445854461 has 8 divisors (see below), whose sum is σ = 22520449504. Its totient is φ = 10667581200.

The previous prime is 16445854457. The next prime is 16445854487.

16445854461 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16445854461 - 2² = 16445854457 is a prime.

It is a super-2 number, since 2×16445854461² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16445854461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16445854561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74080315 + ... + 74080536.

It is an arithmetic number, because the mean of its divisors is an integer number (2815056188).

Almost surely, 2^16445854461 is an apocalyptic number.

It is an amenable number.

16445854461 is a deficient number, since it is larger than the sum of its proper divisors (6074595043).

16445854461 is a wasteful number, since it uses less digits than its factorization.

16445854461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148160891.

The product of its digits is 1843200, while the sum is 48.

The spelling of 16445854461 in words is "sixteen billion, four hundred forty-five million, eight hundred fifty-four thousand, four hundred sixty-one".