87226820166 has 32 divisors (see below), whose sum is σ = 183367369728. Its totient is φ = 27608440640.

The previous prime is 87226820147. The next prime is 87226820167. The reversal of 87226820166 is 66102862278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87226820167) 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, 2287950 + ... + 2325761.

It is an arithmetic number, because the mean of its divisors is an integer number (5730230304).

Almost surely, 2^87226820166 is an apocalyptic number.

87226820166 is an abundant number, since it is smaller than the sum of its proper divisors (96140549562).

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

87226820166 is a wasteful number, since it uses less digits than its factorization.

87226820166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4613876.

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 87226820166 in words is "eighty-seven billion, two hundred twenty-six million, eight hundred twenty thousand, one hundred sixty-six".