16877880648 has 96 divisors (see below), whose sum is σ = 46662515640. Its totient is φ = 5509647360.

The previous prime is 16877880601. The next prime is 16877880667. The reversal of 16877880648 is 84608877861.

It can be written as a sum of positive squares in 4 ways, for example, as 2645867844 + 14232012804 = 51438^2 + 119298^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1015090 + ... + 1031582.

Almost surely, 2^16877880648 is an apocalyptic number.

16877880648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16877880648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23331257820).

16877880648 is an abundant number, since it is smaller than the sum of its proper divisors (29784634992).

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

16877880648 is a wasteful number, since it uses less digits than its factorization.

16877880648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16799 (or 16792 counting only the distinct ones).

The product of its (nonzero) digits is 28901376, while the sum is 63.

The spelling of 16877880648 in words is "sixteen billion, eight hundred seventy-seven million, eight hundred eighty thousand, six hundred forty-eight".