105200066 has 4 divisors (see below), whose sum is σ = 157800102. Its totient is φ = 52600032.

The previous prime is 105200057. The next prime is 105200077. The reversal of 105200066 is 660002501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 660002501 = 1613 ⋅409177.

It can be written as a sum of positive squares in only one way, i.e., 85174441 + 20025625 = 9229^2 + 4475^2 .

It is a super-2 number, since 2×105200066² = 22134107772808712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26300015 + ... + 26300018.

Almost surely, 2^105200066 is an apocalyptic number.

105200066 is a deficient number, since it is larger than the sum of its proper divisors (52600036).

105200066 is an equidigital number, since it uses as much as digits as its factorization.

105200066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52600035.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 105200066 is about 10256.7083413735. The cubic root of 105200066 is about 472.0688428983.

Adding to 105200066 its reverse (660002501), we get a palindrome (765202567).

The spelling of 105200066 in words is "one hundred five million, two hundred thousand, sixty-six".