16455543345 has 24 divisors (see below), whose sum is σ = 28526674176. Its totient is φ = 8775141408.

The previous prime is 16455543337. The next prime is 16455543347. The reversal of 16455543345 is 54334555461.

It is a happy number.

16455543345 is a `hidden beast` number, since 1 + 64 + 5 + 5 + 543 + 3 + 45 = 666.

It is not a de Polignac number, because 16455543345 - 2³ = 16455543337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 16455543345.

It is not an unprimeable number, because it can be changed into a prime (16455543347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 410464 + ... + 448766.

It is an arithmetic number, because the mean of its divisors is an integer number (1188611424).

Almost surely, 2^16455543345 is an apocalyptic number.

16455543345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16455543345 is a deficient number, since it is larger than the sum of its proper divisors (12071130831).

16455543345 is a wasteful number, since it uses less digits than its factorization.

16455543345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47861 (or 47858 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 45.

The spelling of 16455543345 in words is "sixteen billion, four hundred fifty-five million, five hundred forty-three thousand, three hundred forty-five".