16955641 has 2 divisors, whose sum is σ = 16955642. Its totient is φ = 16955640.

The previous prime is 16955611. The next prime is 16955651. The reversal of 16955641 is 14655961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10725625 + 6230016 = 3275^2 + 2496^2 .

It is an emirp because it is prime and its reverse (14655961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16955641 - 2⁹ = 16955129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16955641.

It is not a weakly prime, because it can be changed into another prime (16955611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8477820 + 8477821.

It is an arithmetic number, because the mean of its divisors is an integer number (8477821).

Almost surely, 2^16955641 is an apocalyptic number.

It is an amenable number.

16955641 is a deficient number, since it is larger than the sum of its proper divisors (1).

16955641 is an equidigital number, since it uses as much as digits as its factorization.

16955641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 37.

The square root of 16955641 is about 4117.7227930010. The cubic root of 16955641 is about 256.9043182202.

The spelling of 16955641 in words is "sixteen million, nine hundred fifty-five thousand, six hundred forty-one".