16627991969 has 8 divisors (see below), whose sum is σ = 16843157760. Its totient is φ = 16412943456.

The previous prime is 16627991953. The next prime is 16627991981. The reversal of 16627991969 is 96919972661.

It is a happy number.

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 16627991969 - 2⁴ = 16627991953 is a prime.

It is a super-2 number, since 2×16627991969² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16627990969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276557 + ... + 331269.

It is an arithmetic number, because the mean of its divisors is an integer number (2105394720).

Almost surely, 2^16627991969 is an apocalyptic number.

It is an amenable number.

16627991969 is a deficient number, since it is larger than the sum of its proper divisors (215165791).

16627991969 is an equidigital number, since it uses as much as digits as its factorization.

16627991969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58639.

The product of its digits is 19840464, while the sum is 65.

The spelling of 16627991969 in words is "sixteen billion, six hundred twenty-seven million, nine hundred ninety-one thousand, nine hundred sixty-nine".