16788816740 has 48 divisors (see below), whose sum is σ = 35584529904. Its totient is φ = 6653337600.

The previous prime is 16788816721. The next prime is 16788816761. The reversal of 16788816740 is 4761888761.

It can be written as a sum of positive squares in 8 ways, for example, as 1147312384 + 15641504356 = 33872^2 + 125066^2 .

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 940700 + ... + 958380.

It is an arithmetic number, because the mean of its divisors is an integer number (741344373).

Almost surely, 2^16788816740 is an apocalyptic number.

16788816740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16788816740 is an abundant number, since it is smaller than the sum of its proper divisors (18795713164).

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

16788816740 is a wasteful number, since it uses less digits than its factorization.

16788816740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18128 (or 18126 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 56.

The spelling of 16788816740 in words is "sixteen billion, seven hundred eighty-eight million, eight hundred sixteen thousand, seven hundred forty".