86641919566 has 8 divisors (see below), whose sum is σ = 132985272024. Its totient is φ = 42313495560.

The previous prime is 86641919519. The next prime is 86641919599. The reversal of 86641919566 is 66591914668.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503732005 + ... + 503732176.

It is an arithmetic number, because the mean of its divisors is an integer number (16623159003).

Almost surely, 2^86641919566 is an apocalyptic number.

86641919566 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

86641919566 is a deficient number, since it is larger than the sum of its proper divisors (46343352458).

86641919566 is a wasteful number, since it uses less digits than its factorization.

86641919566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007464226.

The product of its digits is 16796160, while the sum is 61.

The spelling of 86641919566 in words is "eighty-six billion, six hundred forty-one million, nine hundred nineteen thousand, five hundred sixty-six".