671217120000 has 1080 divisors, whose sum is σ = 2927131343136. Its totient is φ = 144359424000.

The previous prime is 671217119981. The next prime is 671217120001. The reversal of 671217120000 is 21712176.

It is not an unprimeable number, because it can be changed into a prime (671217120001) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 171358042 + ... + 171361958.

Almost surely, 2^671217120000 is an apocalyptic number.

671217120000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671217120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1463565671568).

671217120000 is an abundant number, since it is smaller than the sum of its proper divisors (2255914223136).

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

671217120000 is a wasteful number, since it uses less digits than its factorization.

671217120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3983 (or 3951 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

Adding to 671217120000 its reverse (21712176), we get a palindrome (671238832176).

The spelling of 671217120000 in words is "six hundred seventy-one billion, two hundred seventeen million, one hundred twenty thousand".