166061004665364 has 36 divisors (see below), whose sum is σ = 426030471345024. Its totient is φ = 54527494068432.

The previous prime is 166061004665359. The next prime is 166061004665419. The reversal of 166061004665364 is 463566400160661.

166061004665364 is a `hidden beast` number, since 1 + 6 + 6 + 0 + 61 + 0 + 0 + 46 + 6 + 536 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 166061004665364.

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 11 ways as a sum of consecutive naturals, for example, 34423920612 + ... + 34423925435.

It is an arithmetic number, because the mean of its divisors is an integer number (11834179759584).

Almost surely, 2^{166061004665364} is an apocalyptic number.

It is an amenable number.

166061004665364 is an abundant number, since it is smaller than the sum of its proper divisors (259969466679660).

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

166061004665364 is a wasteful number, since it uses less digits than its factorization.

166061004665364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68847846124 (or 68847846119 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 54.

The spelling of 166061004665364 in words is "one hundred sixty-six trillion, sixty-one billion, four million, six hundred sixty-five thousand, three hundred sixty-four".