16506872 has 8 divisors (see below), whose sum is σ = 30950400. Its totient is φ = 8253432.

The previous prime is 16506871. The next prime is 16506899. The reversal of 16506872 is 27860561.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16506871) by changing a digit.

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 as a sum of consecutive naturals, namely, 1031672 + ... + 1031687.

It is an arithmetic number, because the mean of its divisors is an integer number (3868800).

Almost surely, 2^16506872 is an apocalyptic number.

It is an amenable number.

16506872 is a deficient number, since it is larger than the sum of its proper divisors (14443528).

16506872 is a wasteful number, since it uses less digits than its factorization.

16506872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063365 (or 2063361 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 16506872 is about 4062.8649989878. The cubic root of 16506872 is about 254.6175067828.

The spelling of 16506872 in words is "sixteen million, five hundred six thousand, eight hundred seventy-two".