671201063280 has 400 divisors, whose sum is σ = 2566467208800. Its totient is φ = 161220741120.

The previous prime is 671201063233. The next prime is 671201063287. The reversal of 671201063280 is 82360102176.

671201063280 is a `hidden beast` number, since 6 + 7 + 1 + 2 + 0 + 10 + 632 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671201063287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7726326 + ... + 7812714.

It is an arithmetic number, because the mean of its divisors is an integer number (6416168022).

Almost surely, 2^671201063280 is an apocalyptic number.

671201063280 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 671201063280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1283233604400).

671201063280 is an abundant number, since it is smaller than the sum of its proper divisors (1895266145520).

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

671201063280 is a wasteful number, since it uses less digits than its factorization.

671201063280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86534 (or 86519 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 671201063280 in words is "six hundred seventy-one billion, two hundred one million, sixty-three thousand, two hundred eighty".