100661561096 has 16 divisors (see below), whose sum is σ = 188755573200. Its totient is φ = 50326741584.

The previous prime is 100661561069. The next prime is 100661561111. The reversal of 100661561096 is 690165166001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397610 + ... + 599513.

It is an arithmetic number, because the mean of its divisors is an integer number (11797223325).

Almost surely, 2^100661561096 is an apocalyptic number.

It is an amenable number.

100661561096 is a deficient number, since it is larger than the sum of its proper divisors (88094012104).

100661561096 is a wasteful number, since it uses less digits than its factorization.

100661561096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009748 (or 1009744 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The spelling of 100661561096 in words is "one hundred billion, six hundred sixty-one million, five hundred sixty-one thousand, ninety-six".