86156866044 has 36 divisors (see below), whose sum is σ = 217801363416. Its totient is φ = 28716851808.

The previous prime is 86156866027. The next prime is 86156866049. The reversal of 86156866044 is 44066865168.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86156866049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 457042 + ... + 617414.

Almost surely, 2^86156866044 is an apocalyptic number.

It is an amenable number.

86156866044 is an abundant number, since it is smaller than the sum of its proper divisors (131644497372).

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

86156866044 is a wasteful number, since it uses less digits than its factorization.

86156866044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175306 (or 175301 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 86156866044 in words is "eighty-six billion, one hundred fifty-six million, eight hundred sixty-six thousand, forty-four".