16961656 has 8 divisors (see below), whose sum is σ = 31803120. Its totient is φ = 8480824.

The previous prime is 16961647. The next prime is 16961671. The reversal of 16961656 is 65616961.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060096 + ... + 1060111.

It is an arithmetic number, because the mean of its divisors is an integer number (3975390).

Almost surely, 2^16961656 is an apocalyptic number.

It is an amenable number.

16961656 is a deficient number, since it is larger than the sum of its proper divisors (14841464).

16961656 is a wasteful number, since it uses less digits than its factorization.

16961656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120213 (or 2120209 counting only the distinct ones).

The product of its digits is 58320, while the sum is 40.

The square root of 16961656 is about 4118.4531076607. The cubic root of 16961656 is about 256.9346934953.

The spelling of 16961656 in words is "sixteen million, nine hundred sixty-one thousand, six hundred fifty-six".