109161698800 has 480 divisors, whose sum is σ = 349272359424. Its totient is φ = 32004403200.

The previous prime is 109161698743. The next prime is 109161698827. The reversal of 109161698800 is 8896161901.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 63354739 + ... + 63356461.

Almost surely, 2^109161698800 is an apocalyptic number.

109161698800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109161698800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174636179712).

109161698800 is an abundant number, since it is smaller than the sum of its proper divisors (240110660624).

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

109161698800 is a wasteful number, since it uses less digits than its factorization.

109161698800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798 (or 1765 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 49.

The spelling of 109161698800 in words is "one hundred nine billion, one hundred sixty-one million, six hundred ninety-eight thousand, eight hundred".