16331956 has 6 divisors (see below), whose sum is σ = 28580930. Its totient is φ = 8165976.

The previous prime is 16331929. The next prime is 16331971. The reversal of 16331956 is 65913361.

It can be written as a sum of positive squares in only one way, i.e., 10995856 + 5336100 = 3316^2 + 2310^2 .

It is a zygodrome in base 12.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 2041491 + ... + 2041498.

Almost surely, 2^16331956 is an apocalyptic number.

It is an amenable number.

16331956 is a deficient number, since it is larger than the sum of its proper divisors (12248974).

16331956 is a wasteful number, since it uses less digits than its factorization.

16331956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4082993 (or 4082991 counting only the distinct ones).

The product of its digits is 14580, while the sum is 34.

The square root of 16331956 is about 4041.2814799269. The cubic root of 16331956 is about 253.7149549991.

The spelling of 16331956 in words is "sixteen million, three hundred thirty-one thousand, nine hundred fifty-six".