16601376488 has 8 divisors (see below), whose sum is σ = 31127580930. Its totient is φ = 8300688240.

The previous prime is 16601376481. The next prime is 16601376499. The reversal of 16601376488 is 88467310661.

It can be written as a sum of positive squares in only one way, i.e., 10837226404 + 5764150084 = 104102^2 + 75922^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (16601376481) 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 as a sum of consecutive naturals, namely, 1037586023 + ... + 1037586038.

Almost surely, 2^16601376488 is an apocalyptic number.

It is an amenable number.

16601376488 is a deficient number, since it is larger than the sum of its proper divisors (14526204442).

16601376488 is a wasteful number, since it uses less digits than its factorization.

16601376488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075172067 (or 2075172063 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 16601376488 in words is "sixteen billion, six hundred one million, three hundred seventy-six thousand, four hundred eighty-eight".