16888137640 has 32 divisors (see below), whose sum is σ = 41452702560. Its totient is φ = 6141140800.

The previous prime is 16888137601. The next prime is 16888137647. The reversal of 16888137640 is 4673188861.

It is not an unprimeable number, because it can be changed into a prime (16888137647) 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, 19190626 + ... + 19191505.

It is an arithmetic number, because the mean of its divisors is an integer number (1295396955).

Almost surely, 2^16888137640 is an apocalyptic number.

16888137640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16888137640 is an abundant number, since it is smaller than the sum of its proper divisors (24564564920).

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

16888137640 is a wasteful number, since it uses less digits than its factorization.

16888137640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38382153 (or 38382149 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 16888137640 in words is "sixteen billion, eight hundred eighty-eight million, one hundred thirty-seven thousand, six hundred forty".