84055722566 has 4 divisors (see below), whose sum is σ = 126083583852. Its totient is φ = 42027861282.

The previous prime is 84055722557. The next prime is 84055722593. The reversal of 84055722566 is 66522755048.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21013930640 + ... + 21013930643.

It is an arithmetic number, because the mean of its divisors is an integer number (31520895963).

Almost surely, 2^84055722566 is an apocalyptic number.

84055722566 is a deficient number, since it is larger than the sum of its proper divisors (42027861286).

84055722566 is a wasteful number, since it uses less digits than its factorization.

84055722566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42027861285.

The product of its (nonzero) digits is 4032000, while the sum is 50.

The spelling of 84055722566 in words is "eighty-four billion, fifty-five million, seven hundred twenty-two thousand, five hundred sixty-six".