105601106501906 has 16 divisors (see below), whose sum is σ = 159336979383384. Its totient is φ = 52489221961344.

The previous prime is 105601106501843. The next prime is 105601106501911. The reversal of 105601106501906 is 609105601106501.

It can be written as a sum of positive squares in 4 ways, for example, as 59383067893681 + 46218038608225 = 7706041^2 + 6798385^2 .

It is a super-2 number, since 2×105601106501906² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110001515 + ... + 110957358.

Almost surely, 2^{105601106501906} is an apocalyptic number.

105601106501906 is a deficient number, since it is larger than the sum of its proper divisors (53735872881478).

105601106501906 is a wasteful number, since it uses less digits than its factorization.

105601106501906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220960285.

The product of its (nonzero) digits is 48600, while the sum is 41.

The spelling of 105601106501906 in words is "one hundred five trillion, six hundred one billion, one hundred six million, five hundred one thousand, nine hundred six".