16506956 has 12 divisors (see below), whose sum is σ = 29432592. Its totient is φ = 8097648.

The previous prime is 16506943. The next prime is 16506967. The reversal of 16506956 is 65960561.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38720 + ... + 39143.

It is an arithmetic number, because the mean of its divisors is an integer number (2452716).

Almost surely, 2^16506956 is an apocalyptic number.

It is an amenable number.

16506956 is a deficient number, since it is larger than the sum of its proper divisors (12925636).

16506956 is a wasteful number, since it uses less digits than its factorization.

16506956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77920 (or 77918 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 16506956 is about 4062.8753365074. The cubic root of 16506956 is about 254.6179386803.

The spelling of 16506956 in words is "sixteen million, five hundred six thousand, nine hundred fifty-six".