68236560 has 160 divisors (see below), whose sum is σ = 268673280. Its totient is φ = 15593472.

The previous prime is 68236559. The next prime is 68236601. The reversal of 68236560 is 6563286.

68236560 is a `hidden beast` number, since 68 + 2 + 36 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12864 + ... + 17376.

It is an arithmetic number, because the mean of its divisors is an integer number (1679208).

Almost surely, 2^68236560 is an apocalyptic number.

68236560 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 68236560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134336640).

68236560 is an abundant number, since it is smaller than the sum of its proper divisors (200436720).

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

68236560 is a wasteful number, since it uses less digits than its factorization.

68236560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4542 (or 4530 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 68236560 is about 8260.5423550757. The cubic root of 68236560 is about 408.6382743207.

The spelling of 68236560 in words is "sixty-eight million, two hundred thirty-six thousand, five hundred sixty".