853566841072 has 20 divisors (see below), whose sum is σ = 1804129914456. Its totient is φ = 387984927680.

The previous prime is 853566840979. The next prime is 853566841073. The reversal of 853566841072 is 270148665358.

It is a happy number.

It is a super-2 number, since 2×853566841072² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853566841073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2424905623 + ... + 2424905974.

Almost surely, 2^853566841072 is an apocalyptic number.

It is an amenable number.

853566841072 is an abundant number, since it is smaller than the sum of its proper divisors (950563073384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

853566841072 is a wasteful number, since it uses less digits than its factorization.

853566841072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4849811616 (or 4849811610 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 55.

The spelling of 853566841072 in words is "eight hundred fifty-three billion, five hundred sixty-six million, eight hundred forty-one thousand, seventy-two".