56677745358 has 128 divisors (see below), whose sum is σ = 136711411200. Its totient is φ = 17302070016.

The previous prime is 56677745347. The next prime is 56677745359. The reversal of 56677745358 is 85354777665.

It is a happy number.

56677745358 is a `hidden beast` number, since 5 + 6 + 67 + 77 + 453 + 58 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 56677745295 and 56677745304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56677745359) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68533741 + ... + 68534567.

It is an arithmetic number, because the mean of its divisors is an integer number (1068057900).

Almost surely, 2^56677745358 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56677745358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68355705600).

56677745358 is an abundant number, since it is smaller than the sum of its proper divisors (80033665842).

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

56677745358 is a wasteful number, since it uses less digits than its factorization.

56677745358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503 (or 1497 counting only the distinct ones).

The product of its digits is 148176000, while the sum is 63.

The spelling of 56677745358 in words is "fifty-six billion, six hundred seventy-seven million, seven hundred forty-five thousand, three hundred fifty-eight".