105650706506 has 4 divisors (see below), whose sum is σ = 158476059762. Its totient is φ = 52825353252.

The previous prime is 105650706479. The next prime is 105650706509. The reversal of 105650706506 is 605607056501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 605607056501 = 23 ⋅26330741587.

It can be written as a sum of positive squares in only one way, i.e., 67283690881 + 38367015625 = 259391^2 + 195875^2 .

It is a super-2 number, since 2×105650706506² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (105650706509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26412676625 + ... + 26412676628.

Almost surely, 2^105650706506 is an apocalyptic number.

105650706506 is a deficient number, since it is larger than the sum of its proper divisors (52825353256).

105650706506 is an equidigital number, since it uses as much as digits as its factorization.

105650706506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52825353255.

The product of its (nonzero) digits is 189000, while the sum is 41.

The spelling of 105650706506 in words is "one hundred five billion, six hundred fifty million, seven hundred six thousand, five hundred six".