67316550840 has 1296 divisors, whose sum is σ = 302772333240. Its totient is φ = 12824179200.

The previous prime is 67316550767. The next prime is 67316550877. The reversal of 67316550840 is 4805561376.

67316550840 is a `hidden beast` number, since 6 + 7 + 3 + 16 + 550 + 84 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 323 ways as a sum of consecutive naturals, for example, 2171501625 + ... + 2171501655.

Almost surely, 2^67316550840 is an apocalyptic number.

67316550840 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 67316550840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151386166620).

67316550840 is an abundant number, since it is smaller than the sum of its proper divisors (235455782400).

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

67316550840 is a wasteful number, since it uses less digits than its factorization.

67316550840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 67316550840 in words is "sixty-seven billion, three hundred sixteen million, five hundred fifty thousand, eight hundred forty".