16959955 has 4 divisors (see below), whose sum is σ = 20351952. Its totient is φ = 13567960.

The previous prime is 16959919. The next prime is 16959959. The reversal of 16959955 is 55995961.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16959955 - 2⁷ = 16959827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16959899 and 16959908.

It is not an unprimeable number, because it can be changed into a prime (16959959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1695991 + ... + 1696000.

It is an arithmetic number, because the mean of its divisors is an integer number (5087988).

Almost surely, 2^16959955 is an apocalyptic number.

16959955 is a deficient number, since it is larger than the sum of its proper divisors (3391997).

16959955 is an equidigital number, since it uses as much as digits as its factorization.

16959955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391996.

The product of its digits is 546750, while the sum is 49.

The square root of 16959955 is about 4118.2465929082. The cubic root of 16959955 is about 256.9261043079.

The spelling of 16959955 in words is "sixteen million, nine hundred fifty-nine thousand, nine hundred fifty-five".