166652138544336 has 240 divisors, whose sum is σ = 512390112225600. Its totient is φ = 51841510389504.

The previous prime is 166652138544223. The next prime is 166652138544337. The reversal of 166652138544336 is 633445831256661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166652138544337) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 2474070 + ... + 18423498.

It is an arithmetic number, because the mean of its divisors is an integer number (2134958800940).

Almost surely, 2^{166652138544336} is an apocalyptic number.

166652138544336 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 166652138544336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256195056112800).

166652138544336 is an abundant number, since it is smaller than the sum of its proper divisors (345737973681264).

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

166652138544336 is a wasteful number, since it uses less digits than its factorization.

166652138544336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15949551 (or 15949520 counting only the distinct ones).

The product of its digits is 223948800, while the sum is 63.

The spelling of 166652138544336 in words is "one hundred sixty-six trillion, six hundred fifty-two billion, one hundred thirty-eight million, five hundred forty-four thousand, three hundred thirty-six".