105010600505991 has 4 divisors (see below), whose sum is σ = 140014134007992. Its totient is φ = 70007067003992.

The previous prime is 105010600505981. The next prime is 105010600506029. The reversal of 105010600505991 is 199505006010501.

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

It is a cyclic number.

It is not a de Polignac number, because 105010600505991 - 2²⁹ = 105010063635079 is a prime.

It is a super-2 number, since 2×105010600505991² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105010600505981) 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, 17501766750996 + ... + 17501766751001.

It is an arithmetic number, because the mean of its divisors is an integer number (35003533501998).

Almost surely, 2^{105010600505991} is an apocalyptic number.

105010600505991 is a deficient number, since it is larger than the sum of its proper divisors (35003533502001).

105010600505991 is an equidigital number, since it uses as much as digits as its factorization.

105010600505991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35003533502000.

The product of its (nonzero) digits is 60750, while the sum is 42.

The spelling of 105010600505991 in words is "one hundred five trillion, ten billion, six hundred million, five hundred five thousand, nine hundred ninety-one".