16870166687 has 16 divisors (see below), whose sum is σ = 19021680672. Its totient is φ = 14826913920.

The previous prime is 16870166669. The next prime is 16870166713. The reversal of 16870166687 is 78666107861.

It is a cyclic number.

It is not a de Polignac number, because 16870166687 - 2¹² = 16870162591 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 (16870166657) 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 15 ways as a sum of consecutive naturals, for example, 68108 + ... + 195905.

It is an arithmetic number, because the mean of its divisors is an integer number (1188855042).

Almost surely, 2^16870166687 is an apocalyptic number.

16870166687 is a deficient number, since it is larger than the sum of its proper divisors (2151513985).

16870166687 is a wasteful number, since it uses less digits than its factorization.

16870166687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264218.

The product of its (nonzero) digits is 4064256, while the sum is 56.

The spelling of 16870166687 in words is "sixteen billion, eight hundred seventy million, one hundred sixty-six thousand, six hundred eighty-seven".