671383733020 has 96 divisors (see below), whose sum is σ = 1893020484096. Its totient is φ = 193165344000.

The previous prime is 671383733011. The next prime is 671383733021. The reversal of 671383733020 is 20337383176.

It is a happy number.

It is a super-2 number, since 2×671383733020² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671383733021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16747806 + ... + 16787845.

It is an arithmetic number, because the mean of its divisors is an integer number (19718963376).

Almost surely, 2^671383733020 is an apocalyptic number.

It is an amenable number.

671383733020 is an abundant number, since it is smaller than the sum of its proper divisors (1221636751076).

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

671383733020 is a wasteful number, since it uses less digits than its factorization.

671383733020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33535691 (or 33535689 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 43.

The spelling of 671383733020 in words is "six hundred seventy-one billion, three hundred eighty-three million, seven hundred thirty-three thousand, twenty".