16443465251055 has 64 divisors (see below), whose sum is σ = 27649400094720. Its totient is φ = 8344613587200.

The previous prime is 16443465251033. The next prime is 16443465251071. The reversal of 16443465251055 is 55015256434461.

It is a de Polignac number, because none of the positive numbers 2^k-16443465251055 is a prime.

It is a super-3 number, since 3×16443465251055³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 16443465250989 and 16443465251007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34622595 + ... + 35094315.

It is an arithmetic number, because the mean of its divisors is an integer number (432021876480).

Almost surely, 2^{16443465251055} is an apocalyptic number.

16443465251055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16443465251055 is a deficient number, since it is larger than the sum of its proper divisors (11205934843665).

16443465251055 is an equidigital number, since it uses as much as digits as its factorization.

16443465251055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471989 (or 471943 counting only the distinct ones).

The product of its (nonzero) digits is 8640000, while the sum is 51.

The spelling of 16443465251055 in words is "sixteen trillion, four hundred forty-three billion, four hundred sixty-five million, two hundred fifty-one thousand, fifty-five".