100099609961 has 8 divisors (see below), whose sum is σ = 107804740680. Its totient is φ = 92395216512.

The previous prime is 100099609889. The next prime is 100099610003. The reversal of 100099609961 is 169906990001.

It can be written as a sum of positive squares in 4 ways, for example, as 1201939561 + 98897670400 = 34669^2 + 314480^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100099609961 - 2²² = 100095415657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100099669961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115781 + ... + 462173.

It is an arithmetic number, because the mean of its divisors is an integer number (13475592585).

Almost surely, 2^100099609961 is an apocalyptic number.

It is an amenable number.

100099609961 is a deficient number, since it is larger than the sum of its proper divisors (7705130719).

100099609961 is a wasteful number, since it uses less digits than its factorization.

100099609961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368635.

The product of its (nonzero) digits is 236196, while the sum is 50.

The spelling of 100099609961 in words is "one hundred billion, ninety-nine million, six hundred nine thousand, nine hundred sixty-one".