16464043641344 has 60 divisors (see below), whose sum is σ = 35621037840366. Its totient is φ = 7598789332992.

The previous prime is 16464043641337. The next prime is 16464043641371. The reversal of 16464043641344 is 44314634046461.

It can be written as a sum of positive squares in 3 ways, for example, as 7564084082944 + 8899959558400 = 2750288^2 + 2983280^2 .

It is a super-2 number, since 2×16464043641344² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16464043641292 and 16464043641301.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 95050559 + ... + 95223614.

Almost surely, 2^{16464043641344} is an apocalyptic number.

It is an amenable number.

16464043641344 is an abundant number, since it is smaller than the sum of its proper divisors (19156994199022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16464043641344 is an equidigital number, since it uses as much as digits as its factorization.

16464043641344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190274217 (or 190274188 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 50.

The spelling of 16464043641344 in words is "sixteen trillion, four hundred sixty-four billion, forty-three million, six hundred forty-one thousand, three hundred forty-four".