16554433317263 has 4 divisors (see below), whose sum is σ = 16554594391248. Its totient is φ = 16554272243280.

The previous prime is 16554433317217. The next prime is 16554433317299. The reversal of 16554433317263 is 36271333445561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16554433317263 - 2³² = 16550138349967 is a prime.

It is a super-2 number, since 2×16554433317263² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16554433310263) 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, 80382731 + ... + 80588412.

It is an arithmetic number, because the mean of its divisors is an integer number (4138648597812).

Almost surely, 2^{16554433317263} is an apocalyptic number.

16554433317263 is a deficient number, since it is larger than the sum of its proper divisors (161073985).

16554433317263 is a wasteful number, since it uses less digits than its factorization.

16554433317263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161073984.

The product of its digits is 16329600, while the sum is 53.

The spelling of 16554433317263 in words is "sixteen trillion, five hundred fifty-four billion, four hundred thirty-three million, three hundred seventeen thousand, two hundred sixty-three".