86221866144810 has 128 divisors (see below), whose sum is σ = 237631474483200. Its totient is φ = 19801679281920.

The previous prime is 86221866144797. The next prime is 86221866144811. The reversal of 86221866144810 is 1844166812268.

It is a super-2 number, since 2×86221866144810² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (86221866144811) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 309780727 + ... + 310058933.

It is an arithmetic number, because the mean of its divisors is an integer number (1856495894400).

Almost surely, 2^{86221866144810} is an apocalyptic number.

86221866144810 is an abundant number, since it is smaller than the sum of its proper divisors (151409608338390).

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

86221866144810 is a wasteful number, since it uses less digits than its factorization.

86221866144810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327676.

The product of its (nonzero) digits is 7077888, while the sum is 57.

The spelling of 86221866144810 in words is "eighty-six trillion, two hundred twenty-one billion, eight hundred sixty-six million, one hundred forty-four thousand, eight hundred ten".