67651413680 has 160 divisors (see below), whose sum is σ = 169963496640. Its totient is φ = 24958402560.

The previous prime is 67651413673. The next prime is 67651413689. The reversal of 67651413680 is 8631415676.

It is a super-2 number, since 2×67651413680² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67651413689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41940554 + ... + 41942166.

It is an arithmetic number, because the mean of its divisors is an integer number (1062271854).

Almost surely, 2^67651413680 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 67651413680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84981748320).

67651413680 is an abundant number, since it is smaller than the sum of its proper divisors (102312082960).

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

67651413680 is a wasteful number, since it uses less digits than its factorization.

67651413680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359 (or 2353 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 67651413680 in words is "sixty-seven billion, six hundred fifty-one million, four hundred thirteen thousand, six hundred eighty".