16553364623 has 8 divisors (see below), whose sum is σ = 17551783920. Its totient is φ = 15567664320.

The previous prime is 16553364601. The next prime is 16553364631. The reversal of 16553364623 is 32646335561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16553364623 - 2²⁴ = 16536587407 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 (16553361623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3177068 + ... + 3182273.

It is an arithmetic number, because the mean of its divisors is an integer number (2193972990).

Almost surely, 2^16553364623 is an apocalyptic number.

16553364623 is a deficient number, since it is larger than the sum of its proper divisors (998419297).

16553364623 is a wasteful number, since it uses less digits than its factorization.

16553364623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6359497.

The product of its digits is 1166400, while the sum is 44.

The spelling of 16553364623 in words is "sixteen billion, five hundred fifty-three million, three hundred sixty-four thousand, six hundred twenty-three".