16197942648 has 64 divisors (see below), whose sum is σ = 42278307840. Its totient is φ = 5161774464.

The previous prime is 16197942647. The next prime is 16197942667. The reversal of 16197942648 is 84624979161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16197942641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1176090 + ... + 1189782.

It is an arithmetic number, because the mean of its divisors is an integer number (660598560).

Almost surely, 2^16197942648 is an apocalyptic number.

It is an amenable number.

16197942648 is an abundant number, since it is smaller than the sum of its proper divisors (26080365192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16197942648 is a wasteful number, since it uses less digits than its factorization.

16197942648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15868 (or 15864 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 57.

The spelling of 16197942648 in words is "sixteen billion, one hundred ninety-seven million, nine hundred forty-two thousand, six hundred forty-eight".