111666101150604 has 192 divisors, whose sum is σ = 349862826765312. Its totient is φ = 26770966041600.

The previous prime is 111666101150557. The next prime is 111666101150623. The reversal of 111666101150604 is 406051101666111.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 153643314 + ... + 154368390.

It is an arithmetic number, because the mean of its divisors is an integer number (1822202222736).

Almost surely, 2^{111666101150604} is an apocalyptic number.

111666101150604 is a gapful number since it is divisible by the number (14) 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 111666101150604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174931413382656).

111666101150604 is an abundant number, since it is smaller than the sum of its proper divisors (238196725614708).

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

111666101150604 is a wasteful number, since it uses less digits than its factorization.

111666101150604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737936 (or 737934 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The spelling of 111666101150604 in words is "one hundred eleven trillion, six hundred sixty-six billion, one hundred one million, one hundred fifty thousand, six hundred four".