84087231566 has 16 divisors (see below), whose sum is σ = 138059996928. Its totient is φ = 38173269600.

The previous prime is 84087231521. The next prime is 84087231587. The reversal of 84087231566 is 66513278048.

It is a congruent number.

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, 26507630 + ... + 26510801.

It is an arithmetic number, because the mean of its divisors is an integer number (8628749808).

Almost surely, 2^84087231566 is an apocalyptic number.

84087231566 is a deficient number, since it is larger than the sum of its proper divisors (53972765362).

84087231566 is a wasteful number, since it uses less digits than its factorization.

84087231566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53018507.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 84087231566 in words is "eighty-four billion, eighty-seven million, two hundred thirty-one thousand, five hundred sixty-six".