68646076560 has 160 divisors (see below), whose sum is σ = 236560692480. Its totient is φ = 18296865792.

The previous prime is 68646076531. The next prime is 68646076573. The reversal of 68646076560 is 6567064686.

68646076560 is a `hidden beast` number, since 6 + 8 + 6 + 4 + 6 + 0 + 76 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 68646076497 and 68646076506.

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, 5400132 + ... + 5412828.

It is an arithmetic number, because the mean of its divisors is an integer number (1478504328).

Almost surely, 2^68646076560 is an apocalyptic number.

68646076560 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 68646076560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118280346240).

68646076560 is an abundant number, since it is smaller than the sum of its proper divisors (167914615920).

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

68646076560 is a wasteful number, since it uses less digits than its factorization.

68646076560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15222 (or 15210 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 68646076560 in words is "sixty-eight billion, six hundred forty-six million, seventy-six thousand, five hundred sixty".