105551322157 has 2 divisors, whose sum is σ = 105551322158. Its totient is φ = 105551322156.

The previous prime is 105551322143. The next prime is 105551322181. The reversal of 105551322157 is 751223155501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67717571076 + 37833751081 = 260226^2 + 194509^2 .

It is a cyclic number.

It is not a de Polignac number, because 105551322157 - 2³¹ = 103403838509 is a prime.

It is a super-2 number, since 2×105551322157² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105551322187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52775661078 + 52775661079.

It is an arithmetic number, because the mean of its divisors is an integer number (52775661079).

Almost surely, 2^105551322157 is an apocalyptic number.

It is an amenable number.

105551322157 is a deficient number, since it is larger than the sum of its proper divisors (1).

105551322157 is an equidigital number, since it uses as much as digits as its factorization.

105551322157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52500, while the sum is 37.

Adding to 105551322157 its reverse (751223155501), we get a palindrome (856774477658).

The spelling of 105551322157 in words is "one hundred five billion, five hundred fifty-one million, three hundred twenty-two thousand, one hundred fifty-seven".