56780066336 has 96 divisors (see below), whose sum is σ = 137224080000. Its totient is φ = 23053476096.

The previous prime is 56780066327. The next prime is 56780066389. The reversal of 56780066336 is 63366008765.

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, 72410 + ... + 344678.

It is an arithmetic number, because the mean of its divisors is an integer number (1429417500).

Almost surely, 2^56780066336 is an apocalyptic number.

56780066336 is a gapful number since it is divisible by the number (56) 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 56780066336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68612040000).

56780066336 is an abundant number, since it is smaller than the sum of its proper divisors (80444013664).

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

56780066336 is a wasteful number, since it uses less digits than its factorization.

56780066336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272319 (or 272297 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 50.

The spelling of 56780066336 in words is "fifty-six billion, seven hundred eighty million, sixty-six thousand, three hundred thirty-six".