56116331658257 has 6 divisors (see below), whose sum is σ = 60765021854982. Its totient is φ = 51799690761312.

The previous prime is 56116331658253. The next prime is 56116331658293. The reversal of 56116331658257 is 75285613361165.

It can be written as a sum of positive squares in 3 ways, for example, as 95358057601 + 56020973600656 = 308801^2 + 7484716^2 .

It is not a de Polignac number, because 56116331658257 - 2² = 56116331658253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56116331658196 and 56116331658205.

It is not an unprimeable number, because it can be changed into a prime (56116331658253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166024649708 + ... + 166024650045.

It is an arithmetic number, because the mean of its divisors is an integer number (10127503642497).

Almost surely, 2^{56116331658257} is an apocalyptic number.

It is an amenable number.

56116331658257 is a deficient number, since it is larger than the sum of its proper divisors (4648690196725).

56116331658257 is a wasteful number, since it uses less digits than its factorization.

56116331658257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332049299779 (or 332049299766 counting only the distinct ones).

The product of its digits is 27216000, while the sum is 59.

The spelling of 56116331658257 in words is "fifty-six trillion, one hundred sixteen billion, three hundred thirty-one million, six hundred fifty-eight thousand, two hundred fifty-seven".