86656591420 has 48 divisors (see below), whose sum is σ = 208743349248. Its totient is φ = 29601184320.

The previous prime is 86656591393. The next prime is 86656591457. The reversal of 86656591420 is 2419565668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1104082 + ... + 1179961.

It is an arithmetic number, because the mean of its divisors is an integer number (4348819776).

Almost surely, 2^86656591420 is an apocalyptic number.

It is an amenable number.

86656591420 is an abundant number, since it is smaller than the sum of its proper divisors (122086757828).

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

86656591420 is a wasteful number, since it uses less digits than its factorization.

86656591420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284330 (or 2284328 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 86656591420 in words is "eighty-six billion, six hundred fifty-six million, five hundred ninety-one thousand, four hundred twenty".