86156866280 has 32 divisors (see below), whose sum is σ = 195772294440. Its totient is φ = 34121529600.

The previous prime is 86156866273. The next prime is 86156866297. The reversal of 86156866280 is 8266865168.

It can be written as a sum of positive squares in 4 ways, for example, as 66484559716 + 19672306564 = 257846^2 + 140258^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10658939 + ... + 10667018.

Almost surely, 2^86156866280 is an apocalyptic number.

It is an amenable number.

86156866280 is an abundant number, since it is smaller than the sum of its proper divisors (109615428160).

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

86156866280 is a wasteful number, since it uses less digits than its factorization.

86156866280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21326069 (or 21326065 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 56.

The spelling of 86156866280 in words is "eighty-six billion, one hundred fifty-six million, eight hundred sixty-six thousand, two hundred eighty".