87121124166 has 16 divisors (see below), whose sum is σ = 174335598144. Its totient is φ = 29024816424.

The previous prime is 87121124159. The next prime is 87121124179. The reversal of 87121124166 is 66142112178.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3877440 + ... + 3899843.

It is an arithmetic number, because the mean of its divisors is an integer number (10895974884).

Almost surely, 2^87121124166 is an apocalyptic number.

87121124166 is an abundant number, since it is smaller than the sum of its proper divisors (87214473978).

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

87121124166 is a wasteful number, since it uses less digits than its factorization.

87121124166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7779155.

The product of its digits is 32256, while the sum is 39.

The spelling of 87121124166 in words is "eighty-seven billion, one hundred twenty-one million, one hundred twenty-four thousand, one hundred sixty-six".