16432823073557 has 4 divisors (see below), whose sum is σ = 17926716080256. Its totient is φ = 14938930066860.

The previous prime is 16432823073539. The next prime is 16432823073577. The reversal of 16432823073557 is 75537032823461.

16432823073557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16432823073557 - 2⁶ = 16432823073493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16432823073517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746946503333 + ... + 746946503354.

It is an arithmetic number, because the mean of its divisors is an integer number (4481679020064).

Almost surely, 2^{16432823073557} is an apocalyptic number.

It is an amenable number.

16432823073557 is a deficient number, since it is larger than the sum of its proper divisors (1493893006699).

16432823073557 is a wasteful number, since it uses less digits than its factorization.

16432823073557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493893006698.

The product of its (nonzero) digits is 25401600, while the sum is 56.

The spelling of 16432823073557 in words is "sixteen trillion, four hundred thirty-two billion, eight hundred twenty-three million, seventy-three thousand, five hundred fifty-seven".