16804942951 has 8 divisors (see below), whose sum is σ = 16870448000. Its totient is φ = 16739537760.

The previous prime is 16804942949. The next prime is 16804942981. The reversal of 16804942951 is 15924940861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16804942951 - 2¹ = 16804942949 is a prime.

It is a super-2 number, since 2×16804942951² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16804942895 and 16804942904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16804942981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321565 + ... + 370153.

It is an arithmetic number, because the mean of its divisors is an integer number (2108806000).

Almost surely, 2^16804942951 is an apocalyptic number.

16804942951 is a deficient number, since it is larger than the sum of its proper divisors (65505049).

16804942951 is an equidigital number, since it uses as much as digits as its factorization.

16804942951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49929.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 16804942951 in words is "sixteen billion, eight hundred four million, nine hundred forty-two thousand, nine hundred fifty-one".