16554423244355 has 4 divisors (see below), whose sum is σ = 19865307893232. Its totient is φ = 13243538595480.

The previous prime is 16554423244351. The next prime is 16554423244357. The reversal of 16554423244355 is 55344232445561.

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

It is not a de Polignac number, because 16554423244355 - 2² = 16554423244351 is a prime.

It is a super-2 number, since 2×16554423244355² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16554423244297 and 16554423244306.

It is not an unprimeable number, because it can be changed into a prime (16554423244351) 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, 1655442324431 + ... + 1655442324440.

It is an arithmetic number, because the mean of its divisors is an integer number (4966326973308).

Almost surely, 2^{16554423244355} is an apocalyptic number.

16554423244355 is a deficient number, since it is larger than the sum of its proper divisors (3310884648877).

16554423244355 is an equidigital number, since it uses as much as digits as its factorization.

16554423244355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310884648876.

The product of its digits is 34560000, while the sum is 53.

The spelling of 16554423244355 in words is "sixteen trillion, five hundred fifty-four billion, four hundred twenty-three million, two hundred forty-four thousand, three hundred fifty-five".