16461563 has 8 divisors (see below), whose sum is σ = 16862976. Its totient is φ = 16065000.

The previous prime is 16461547. The next prime is 16461659. The reversal of 16461563 is 36516461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16461563 - 2⁴ = 16461547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16461503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6188 + ... + 8438.

It is an arithmetic number, because the mean of its divisors is an integer number (2107872).

Almost surely, 2^16461563 is an apocalyptic number.

16461563 is a deficient number, since it is larger than the sum of its proper divisors (401413).

16461563 is a wasteful number, since it uses less digits than its factorization.

16461563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425.

The product of its digits is 12960, while the sum is 32.

The square root of 16461563 is about 4057.2851760753. The cubic root of 16461563 is about 254.3843304415.

The spelling of 16461563 in words is "sixteen million, four hundred sixty-one thousand, five hundred sixty-three".