67371680 has 144 divisors (see below), whose sum is σ = 178246656. Its totient is φ = 24023040.

The previous prime is 67371677. The next prime is 67371721. The reversal of 67371680 is 8617376.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1433417 + ... + 1433463.

It is an arithmetic number, because the mean of its divisors is an integer number (1237824).

Almost surely, 2^67371680 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 67371680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89123328).

67371680 is an abundant number, since it is smaller than the sum of its proper divisors (110874976).

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

67371680 is a wasteful number, since it uses less digits than its factorization.

67371680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 67371680 is about 8208.0253410915. The cubic root of 67371680 is about 406.9044683994.

The spelling of 67371680 in words is "sixty-seven million, three hundred seventy-one thousand, six hundred eighty".