16033518945 has 64 divisors (see below), whose sum is σ = 28794528000. Its totient is φ = 8464439808.

The previous prime is 16033518911. The next prime is 16033518967. The reversal of 16033518945 is 54981533061.

16033518945 is a `hidden beast` number, since 1 + 60 + 33 + 518 + 9 + 45 = 666.

It is not a de Polignac number, because 16033518945 - 2⁹ = 16033518433 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 16033518945.

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, 7748371 + ... + 7750439.

It is an arithmetic number, because the mean of its divisors is an integer number (449914500).

Almost surely, 2^16033518945 is an apocalyptic number.

16033518945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16033518945 is a deficient number, since it is larger than the sum of its proper divisors (12761009055).

16033518945 is a wasteful number, since it uses less digits than its factorization.

16033518945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639 (or 2633 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 16033518945 in words is "sixteen billion, thirty-three million, five hundred eighteen thousand, nine hundred forty-five".