67440310660 has 48 divisors (see below), whose sum is σ = 148023945216. Its totient is φ = 25761048192.

The previous prime is 67440310633. The next prime is 67440310687. The reversal of 67440310660 is 6601304476.

It is an interprime number because it is at equal distance from previous prime (67440310633) and next prime (67440310687).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 162397 + ... + 401563.

It is an arithmetic number, because the mean of its divisors is an integer number (3083832192).

Almost surely, 2^67440310660 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 67440310660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74011972608).

67440310660 is an abundant number, since it is smaller than the sum of its proper divisors (80583634556).

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

67440310660 is a wasteful number, since it uses less digits than its factorization.

67440310660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239812 (or 239810 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 67440310660 in words is "sixty-seven billion, four hundred forty million, three hundred ten thousand, six hundred sixty".