56405360020650 has 48 divisors (see below), whose sum is σ = 140191387754304. Its totient is φ = 15008515908480.

The previous prime is 56405360020627. The next prime is 56405360020651. The reversal of 56405360020650 is 5602006350465.

56405360020650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56405360020651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 411349102 + ... + 411486201.

It is an arithmetic number, because the mean of its divisors is an integer number (2920653911548).

Almost surely, 2^{56405360020650} is an apocalyptic number.

56405360020650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56405360020650 is an abundant number, since it is smaller than the sum of its proper divisors (83786027733654).

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

56405360020650 is a wasteful number, since it uses less digits than its factorization.

56405360020650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822835775 (or 822835770 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 56405360020650 in words is "fifty-six trillion, four hundred five billion, three hundred sixty million, twenty thousand, six hundred fifty".