166099219029216 has 240 divisors, whose sum is σ = 532915904505600. Its totient is φ = 50331751384320.

The previous prime is 166099219029203. The next prime is 166099219029251. The reversal of 166099219029216 is 612920912990661.

166099219029216 is a `hidden beast` number, since 1 + 6 + 60 + 9 + 92 + 190 + 292 + 16 = 666.

166099219029216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1782152985 + ... + 1782246183.

It is an arithmetic number, because the mean of its divisors is an integer number (2220482935440).

Almost surely, 2^{166099219029216} is an apocalyptic number.

166099219029216 is a gapful number since it is divisible by the number (16) 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 166099219029216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266457952252800).

166099219029216 is an abundant number, since it is smaller than the sum of its proper divisors (366816685476384).

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

166099219029216 is a wasteful number, since it uses less digits than its factorization.

166099219029216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155739 (or 155722 counting only the distinct ones).

The product of its (nonzero) digits is 11337408, while the sum is 63.

The spelling of 166099219029216 in words is "one hundred sixty-six trillion, ninety-nine billion, two hundred nineteen million, twenty-nine thousand, two hundred sixteen".