16986820005 has 24 divisors (see below), whose sum is σ = 29474345472. Its totient is φ = 9050245344.

The previous prime is 16986819953. The next prime is 16986820027. The reversal of 16986820005 is 50002868961.

It is not a de Polignac number, because 16986820005 - 2¹⁶ = 16986754469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 151669 + ... + 238698.

It is an arithmetic number, because the mean of its divisors is an integer number (1228097728).

Almost surely, 2^16986820005 is an apocalyptic number.

16986820005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16986820005 is a deficient number, since it is larger than the sum of its proper divisors (12487525467).

16986820005 is a wasteful number, since it uses less digits than its factorization.

16986820005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391345 (or 391342 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 16986820005 in words is "sixteen billion, nine hundred eighty-six million, eight hundred twenty thousand, five".