100161644621075 has 12 divisors (see below), whose sum is σ = 126843001870560. Its totient is φ = 78424436638560.

The previous prime is 100161644621053. The next prime is 100161644621107. The reversal of 100161644621075 is 570126446161001.

It is not a de Polignac number, because 100161644621075 - 2²⁶ = 100161577512211 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42621975260 + ... + 42621977609.

It is an arithmetic number, because the mean of its divisors is an integer number (10570250155880).

Almost surely, 2^{100161644621075} is an apocalyptic number.

100161644621075 is a deficient number, since it is larger than the sum of its proper divisors (26681357249485).

100161644621075 is an equidigital number, since it uses as much as digits as its factorization.

100161644621075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85243952926 (or 85243952921 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 100161644621075 in words is "one hundred trillion, one hundred sixty-one billion, six hundred forty-four million, six hundred twenty-one thousand, seventy-five".