80647187166 has 160 divisors (see below), whose sum is σ = 232082661888. Its totient is φ = 20344737600.

The previous prime is 80647187147. The next prime is 80647187171. The reversal of 80647187166 is 66178174608.

80647187166 is a `hidden beast` number, since 8 + 0 + 6 + 471 + 8 + 7 + 166 = 666.

It is a super-2 number, since 2×80647187166² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 220141 + ... + 457991.

Almost surely, 2^80647187166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80647187166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116041330944).

80647187166 is an abundant number, since it is smaller than the sum of its proper divisors (151435474722).

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

80647187166 is a wasteful number, since it uses less digits than its factorization.

80647187166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237908 (or 237899 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 80647187166 in words is "eighty billion, six hundred forty-seven million, one hundred eighty-seven thousand, one hundred sixty-six".