16447474461 has 16 divisors (see below), whose sum is σ = 24121320768. Its totient is φ = 9968163920.

The previous prime is 16447474453. The next prime is 16447474481.

16447474461 is nontrivially palindromic in base 10.

16447474461 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 16447474461 - 2³ = 16447474453 is a prime.

It is a super-2 number, since 2×16447474461² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16447474461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16447474451) 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, 2055546 + ... + 2063531.

It is an arithmetic number, because the mean of its divisors is an integer number (1507582548).

Almost surely, 2^16447474461 is an apocalyptic number.

16447474461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16447474461 is a deficient number, since it is larger than the sum of its proper divisors (7673846307).

16447474461 is an equidigital number, since it uses as much as digits as its factorization.

16447474461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4119113 (or 4119091 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 48.

The spelling of 16447474461 in words is "sixteen billion, four hundred forty-seven million, four hundred seventy-four thousand, four hundred sixty-one".