68553320 has 64 divisors (see below), whose sum is σ = 169128000. Its totient is φ = 24801280.

The previous prime is 68553313. The next prime is 68553337. The reversal of 68553320 is 2335586.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152456 + ... + 152904.

It is an arithmetic number, because the mean of its divisors is an integer number (2642625).

Almost surely, 2^68553320 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 68553320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84564000).

68553320 is an abundant number, since it is smaller than the sum of its proper divisors (100574680).

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

68553320 is a wasteful number, since it uses less digits than its factorization.

68553320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818 (or 814 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 68553320 is about 8279.6932310322. The cubic root of 68553320 is about 409.2696097992.

The spelling of 68553320 in words is "sixty-eight million, five hundred fifty-three thousand, three hundred twenty".