105115161061 has 4 divisors (see below), whose sum is σ = 106445732800. Its totient is φ = 103784589324.

The previous prime is 105115161059. The next prime is 105115161071. The reversal of 105115161061 is 160161511501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 160161511501 = 31 ⋅5166500371.

It is a cyclic number.

It is not a de Polignac number, because 105115161061 - 2¹ = 105115161059 is a prime.

It is a super-2 number, since 2×105115161061² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105115161071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665285751 + ... + 665285908.

It is an arithmetic number, because the mean of its divisors is an integer number (26611433200).

Almost surely, 2^105115161061 is an apocalyptic number.

It is an amenable number.

105115161061 is a deficient number, since it is larger than the sum of its proper divisors (1330571739).

105115161061 is an equidigital number, since it uses as much as digits as its factorization.

105115161061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330571738.

The product of its (nonzero) digits is 900, while the sum is 28.

Adding to 105115161061 its reverse (160161511501), we get a palindrome (265276672562).

The spelling of 105115161061 in words is "one hundred five billion, one hundred fifteen million, one hundred sixty-one thousand, sixty-one".