86216784555 has 16 divisors (see below), whose sum is σ = 150487478784. Its totient is φ = 41802077280.

The previous prime is 86216784541. The next prime is 86216784587. The reversal of 86216784555 is 55548761268.

It is not a de Polignac number, because 86216784555 - 2¹² = 86216780459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86216784495 and 86216784504.

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, 261262819 + ... + 261263148.

It is an arithmetic number, because the mean of its divisors is an integer number (9405467424).

Almost surely, 2^86216784555 is an apocalyptic number.

86216784555 is a deficient number, since it is larger than the sum of its proper divisors (64270694229).

86216784555 is a wasteful number, since it uses less digits than its factorization.

86216784555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522525986.

The product of its digits is 16128000, while the sum is 57.

The spelling of 86216784555 in words is "eighty-six billion, two hundred sixteen million, seven hundred eighty-four thousand, five hundred fifty-five".