16145563 has 24 divisors (see below), whose sum is σ = 20512512. Its totient is φ = 12422784.

The previous prime is 16145539. The next prime is 16145567. The reversal of 16145563 is 36554161.

It is not a de Polignac number, because 16145563 - 2⁵ = 16145531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16145567) 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, 46356 + ... + 46702.

It is an arithmetic number, because the mean of its divisors is an integer number (854688).

Almost surely, 2^16145563 is an apocalyptic number.

16145563 is a deficient number, since it is larger than the sum of its proper divisors (4366949).

16145563 is a wasteful number, since it uses less digits than its factorization.

16145563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 394 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 16145563 is about 4018.1541782266. The cubic root of 16145563 is about 252.7460621302.

The spelling of 16145563 in words is "sixteen million, one hundred forty-five thousand, five hundred sixty-three".