16645485967 has 8 divisors (see below), whose sum is σ = 18161518032. Its totient is φ = 15129921600.

The previous prime is 16645485937. The next prime is 16645485973. The reversal of 16645485967 is 76958454661.

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 16645485967 - 2¹⁹ = 16644961679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16645485937) 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, 40318 + ... + 186859.

It is an arithmetic number, because the mean of its divisors is an integer number (2270189754).

Almost surely, 2^16645485967 is an apocalyptic number.

16645485967 is a deficient number, since it is larger than the sum of its proper divisors (1516032065).

16645485967 is a wasteful number, since it uses less digits than its factorization.

16645485967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233849.

The product of its digits is 43545600, while the sum is 61.

The spelling of 16645485967 in words is "sixteen billion, six hundred forty-five million, four hundred eighty-five thousand, nine hundred sixty-seven".