105615216106 has 4 divisors (see below), whose sum is σ = 158422824162. Its totient is φ = 52807608052.

The previous prime is 105615216101. The next prime is 105615216163. The reversal of 105615216106 is 601612516501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 96497830881 + 9117385225 = 310641^2 + 95485^2 .

It is a super-2 number, since 2×105615216106² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105615216101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26403804025 + ... + 26403804028.

Almost surely, 2^105615216106 is an apocalyptic number.

105615216106 is a deficient number, since it is larger than the sum of its proper divisors (52807608056).

105615216106 is an equidigital number, since it uses as much as digits as its factorization.

105615216106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52807608055.

The product of its (nonzero) digits is 10800, while the sum is 34.

The spelling of 105615216106 in words is "one hundred five billion, six hundred fifteen million, two hundred sixteen thousand, one hundred six".