670868020212 has 96 divisors (see below), whose sum is σ = 1702123057152. Its totient is φ = 204424528896.

The previous prime is 670868020183. The next prime is 670868020213. The reversal of 670868020212 is 212020868076.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670868020213) 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, 11004888 + ... + 11065680.

It is an arithmetic number, because the mean of its divisors is an integer number (17730448512).

Almost surely, 2^670868020212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670868020212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (851061528576).

670868020212 is an abundant number, since it is smaller than the sum of its proper divisors (1031255036940).

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

670868020212 is a wasteful number, since it uses less digits than its factorization.

670868020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61497 (or 61495 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

Adding to 670868020212 its reverse (212020868076), we get a palindrome (882888888288).

The spelling of 670868020212 in words is "six hundred seventy billion, eight hundred sixty-eight million, twenty thousand, two hundred twelve".