16533423054501 has 4 divisors (see below), whose sum is σ = 22044564072672. Its totient is φ = 11022282036332.

The previous prime is 16533423054493. The next prime is 16533423054503. The reversal of 16533423054501 is 10545032433561.

It is a happy number.

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 16533423054501 - 2³ = 16533423054493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16533423054503) 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, 2755570509081 + ... + 2755570509086.

It is an arithmetic number, because the mean of its divisors is an integer number (5511141018168).

Almost surely, 2^{16533423054501} is an apocalyptic number.

It is an amenable number.

16533423054501 is a deficient number, since it is larger than the sum of its proper divisors (5511141018171).

16533423054501 is an equidigital number, since it uses as much as digits as its factorization.

16533423054501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5511141018170.

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 16533423054501 in words is "sixteen trillion, five hundred thirty-three billion, four hundred twenty-three million, fifty-four thousand, five hundred one".