853477316661 has 8 divisors (see below), whose sum is σ = 1138035267040. Its totient is φ = 568952122032.

The previous prime is 853477316651. The next prime is 853477316689. The reversal of 853477316661 is 166613774358.

It is a happy number.

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

It is not a de Polignac number, because 853477316661 - 2¹⁸ = 853477054517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853477316651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8128075 + ... + 8232408.

It is an arithmetic number, because the mean of its divisors is an integer number (142254408380).

Almost surely, 2^853477316661 is an apocalyptic number.

It is an amenable number.

853477316661 is a deficient number, since it is larger than the sum of its proper divisors (284557950379).

853477316661 is a wasteful number, since it uses less digits than its factorization.

853477316661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16377875.

The product of its digits is 15240960, while the sum is 57.

The spelling of 853477316661 in words is "eight hundred fifty-three billion, four hundred seventy-seven million, three hundred sixteen thousand, six hundred sixty-one".