56344039668 has 384 divisors, whose sum is σ = 180447232000. Its totient is φ = 15033403008.

The previous prime is 56344039637. The next prime is 56344039727. The reversal of 56344039668 is 86693044365.

56344039668 is a `hidden beast` number, since 56 + 3 + 440 + 3 + 96 + 68 = 666.

It is a super-2 number, since 2×56344039668² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 91914930 + ... + 91915542.

Almost surely, 2^56344039668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56344039668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90223616000).

56344039668 is an abundant number, since it is smaller than the sum of its proper divisors (124103192332).

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

56344039668 is a wasteful number, since it uses less digits than its factorization.

56344039668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743 (or 723 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 54.

The spelling of 56344039668 in words is "fifty-six billion, three hundred forty-four million, thirty-nine thousand, six hundred sixty-eight".