105771156857 has 2 divisors, whose sum is σ = 105771156858. Its totient is φ = 105771156856.

The previous prime is 105771156847. The next prime is 105771156901. The reversal of 105771156857 is 758651177501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100450329721 + 5320827136 = 316939^2 + 72944^2 .

It is a cyclic number.

It is not a de Polignac number, because 105771156857 - 2⁶ = 105771156793 is a prime.

It is a super-2 number, since 2×105771156857² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105771156799 and 105771156808.

It is not a weakly prime, because it can be changed into another prime (105771156847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52885578428 + 52885578429.

It is an arithmetic number, because the mean of its divisors is an integer number (52885578429).

Almost surely, 2^105771156857 is an apocalyptic number.

It is an amenable number.

105771156857 is a deficient number, since it is larger than the sum of its proper divisors (1).

105771156857 is an equidigital number, since it uses as much as digits as its factorization.

105771156857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2058000, while the sum is 53.

The spelling of 105771156857 in words is "one hundred five billion, seven hundred seventy-one million, one hundred fifty-six thousand, eight hundred fifty-seven".