109211603646 has 16 divisors (see below), whose sum is σ = 218916267264. Its totient is φ = 36321691224.

The previous prime is 109211603623. The next prime is 109211603647. The reversal of 109211603646 is 646306112901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109211603647) 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, 20541286 + ... + 20546601.

It is an arithmetic number, because the mean of its divisors is an integer number (13682266704).

Almost surely, 2^109211603646 is an apocalyptic number.

109211603646 is an abundant number, since it is smaller than the sum of its proper divisors (109704663618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109211603646 is a wasteful number, since it uses less digits than its factorization.

109211603646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41088335.

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 109211603646 in words is "one hundred nine billion, two hundred eleven million, six hundred three thousand, six hundred forty-six".