105561001010099 has 4 divisors (see below), whose sum is σ = 105591066807120. Its totient is φ = 105530935213080.

The previous prime is 105561001010029. The next prime is 105561001010107. The reversal of 105561001010099 is 990010100165501.

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 105561001010099 - 2²⁰ = 105560999961523 is a prime.

It is a super-2 number, since 2×105561001010099² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105561001010029) 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, 15032893244 + ... + 15032900265.

It is an arithmetic number, because the mean of its divisors is an integer number (26397766701780).

Almost surely, 2^{105561001010099} is an apocalyptic number.

105561001010099 is a deficient number, since it is larger than the sum of its proper divisors (30065797021).

105561001010099 is an equidigital number, since it uses as much as digits as its factorization.

105561001010099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30065797020.

The product of its (nonzero) digits is 12150, while the sum is 38.

The spelling of 105561001010099 in words is "one hundred five trillion, five hundred sixty-one billion, one million, ten thousand, ninety-nine".