84165600853 has 8 divisors (see below), whose sum is σ = 88548649560. Its totient is φ = 79893515520.

The previous prime is 84165600851. The next prime is 84165600859. The reversal of 84165600853 is 35800656148.

It can be written as a sum of positive squares in 4 ways, for example, as 134026929 + 84031573924 = 11577^2 + 289882^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 84165600853 - 2¹ = 84165600851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84165600851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27739288 + ... + 27742321.

It is an arithmetic number, because the mean of its divisors is an integer number (11068581195).

Almost surely, 2^84165600853 is an apocalyptic number.

It is an amenable number.

84165600853 is a deficient number, since it is larger than the sum of its proper divisors (4383048707).

84165600853 is a wasteful number, since it uses less digits than its factorization.

84165600853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55481687.

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 84165600853 in words is "eighty-four billion, one hundred sixty-five million, six hundred thousand, eight hundred fifty-three".