16450545465 has 24 divisors (see below), whose sum is σ = 30191590728. Its totient is φ = 8257528320.

The previous prime is 16450545457. The next prime is 16450545511. The reversal of 16450545465 is 56454505461.

16450545465 is a `hidden beast` number, since 1 + 6 + 4 + 50 + 54 + 546 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8568834624 + 7881710841 = 92568^2 + 88779^2 .

It is not a de Polignac number, because 16450545465 - 2³ = 16450545457 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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 16450545465.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10751226 + ... + 10752755.

It is an arithmetic number, because the mean of its divisors is an integer number (1257982947).

Almost surely, 2^16450545465 is an apocalyptic number.

16450545465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16450545465 is a deficient number, since it is larger than the sum of its proper divisors (13741045263).

16450545465 is a wasteful number, since it uses less digits than its factorization.

16450545465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21504009 (or 21504006 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 45.

The spelling of 16450545465 in words is "sixteen billion, four hundred fifty million, five hundred forty-five thousand, four hundred sixty-five".