67651552320 has 448 divisors, whose sum is σ = 248705095680. Its totient is φ = 15418163200.

The previous prime is 67651552273. The next prime is 67651552327. The reversal of 67651552320 is 2325515676.

It is not an unprimeable number, because it can be changed into a prime (67651552327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14327560 + ... + 14332280.

Almost surely, 2^67651552320 is an apocalyptic number.

67651552320 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 67651552320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124352547840).

67651552320 is an abundant number, since it is smaller than the sum of its proper divisors (181053543360).

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

67651552320 is a wasteful number, since it uses less digits than its factorization.

67651552320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4834 (or 4824 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 42.

The spelling of 67651552320 in words is "sixty-seven billion, six hundred fifty-one million, five hundred fifty-two thousand, three hundred twenty".