16432444774413 has 10 divisors (see below), whose sum is σ = 24547232317454. Its totient is φ = 10954963182888.

The previous prime is 16432444774409. The next prime is 16432444774463. The reversal of 16432444774413 is 31447744423461.

16432444774413 is a `hidden beast` number, since 1 + 64 + 32 + 4 + 44 + 77 + 441 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14108121942084 + 2324322832329 = 3756078^2 + 1524573^2 .

It is not a de Polignac number, because 16432444774413 - 2² = 16432444774409 is a prime.

It is a super-2 number, since 2×16432444774413² (a number of 27 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 16432444774413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16432444774463) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 101434844206 + ... + 101434844367.

Almost surely, 2^{16432444774413} is an apocalyptic number.

It is an amenable number.

16432444774413 is a deficient number, since it is larger than the sum of its proper divisors (8114787543041).

16432444774413 is an equidigital number, since it uses as much as digits as its factorization.

16432444774413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202869688585 (or 202869688576 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 54.

The spelling of 16432444774413 in words is "sixteen trillion, four hundred thirty-two billion, four hundred forty-four million, seven hundred seventy-four thousand, four hundred thirteen".