16687955837 has 32 divisors (see below), whose sum is σ = 20978611200. Its totient is φ = 12943300608.

The previous prime is 16687955807. The next prime is 16687955849. The reversal of 16687955837 is 73855978661.

It is not a de Polignac number, because 16687955837 - 2⁶ = 16687955773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16687955807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 814673 + ... + 834905.

It is an arithmetic number, because the mean of its divisors is an integer number (655581600).

Almost surely, 2^16687955837 is an apocalyptic number.

16687955837 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16687955837 is a deficient number, since it is larger than the sum of its proper divisors (4290655363).

16687955837 is a wasteful number, since it uses less digits than its factorization.

16687955837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20525.

The product of its digits is 76204800, while the sum is 65.

The spelling of 16687955837 in words is "sixteen billion, six hundred eighty-seven million, nine hundred fifty-five thousand, eight hundred thirty-seven".