16773432641 has 16 divisors (see below), whose sum is σ = 20006179200. Its totient is φ = 13758597888.

The previous prime is 16773432631. The next prime is 16773432659. The reversal of 16773432641 is 14623437761.

It is a happy number.

16773432641 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 16773432641 - 2¹⁸ = 16773170497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16773432592 and 16773432601.

It is not an unprimeable number, because it can be changed into a prime (16773432631) 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, 342671 + ... + 388548.

It is an arithmetic number, because the mean of its divisors is an integer number (1250386200).

Almost surely, 2^16773432641 is an apocalyptic number.

It is an amenable number.

16773432641 is a deficient number, since it is larger than the sum of its proper divisors (3232746559).

16773432641 is a wasteful number, since it uses less digits than its factorization.

16773432641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731368.

The product of its digits is 508032, while the sum is 44.

The spelling of 16773432641 in words is "sixteen billion, seven hundred seventy-three million, four hundred thirty-two thousand, six hundred forty-one".