16345853219955 has 32 divisors (see below), whose sum is σ = 29889831283200. Its totient is φ = 7472322266112.

The previous prime is 16345853219951. The next prime is 16345853219977. The reversal of 16345853219955 is 55991235854361.

It is not a de Polignac number, because 16345853219955 - 2² = 16345853219951 is a prime.

It is a super-2 number, since 2×16345853219955² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16345853219951) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12010851 + ... + 13302339.

It is an arithmetic number, because the mean of its divisors is an integer number (934057227600).

Almost surely, 2^{16345853219955} is an apocalyptic number.

16345853219955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16345853219955 is a deficient number, since it is larger than the sum of its proper divisors (13543978063245).

16345853219955 is a wasteful number, since it uses less digits than its factorization.

16345853219955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412043.

The product of its digits is 174960000, while the sum is 66.

The spelling of 16345853219955 in words is "sixteen trillion, three hundred forty-five billion, eight hundred fifty-three million, two hundred nineteen thousand, nine hundred fifty-five".