16356544455 has 32 divisors (see below), whose sum is σ = 26329959360. Its totient is φ = 8670412800.

The previous prime is 16356544429. The next prime is 16356544487. The reversal of 16356544455 is 55444565361.

It is a happy number.

It is not a de Polignac number, because 16356544455 - 2⁵ = 16356544423 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4633131 + ... + 4636659.

It is an arithmetic number, because the mean of its divisors is an integer number (822811230).

Almost surely, 2^16356544455 is an apocalyptic number.

16356544455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16356544455 is a deficient number, since it is larger than the sum of its proper divisors (9973414905).

16356544455 is a wasteful number, since it uses less digits than its factorization.

16356544455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5331.

The product of its digits is 4320000, while the sum is 48.

The spelling of 16356544455 in words is "sixteen billion, three hundred fifty-six million, five hundred forty-four thousand, four hundred fifty-five".