56446321140 has 144 divisors (see below), whose sum is σ = 191342039616. Its totient is φ = 13350182400.

The previous prime is 56446321123. The next prime is 56446321157. The reversal of 56446321140 is 4112364465.

56446321140 is a `hidden beast` number, since 5 + 6 + 4 + 4 + 632 + 1 + 14 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (56446321123) and next prime (56446321157).

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

It is a junction number, because it is equal to n+sod(n) for n = 56446321095 and 56446321104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 266482 + ... + 428841.

It is an arithmetic number, because the mean of its divisors is an integer number (1328764164).

Almost surely, 2^56446321140 is an apocalyptic number.

It is an amenable number.

56446321140 is an abundant number, since it is smaller than the sum of its proper divisors (134895718476).

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

56446321140 is a wasteful number, since it uses less digits than its factorization.

56446321140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695390 (or 695385 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 56446321140 in words is "fifty-six billion, four hundred forty-six million, three hundred twenty-one thousand, one hundred forty".