166144886208 has 112 divisors (see below), whose sum is σ = 558211695360. Its totient is φ = 47469964032.

The previous prime is 166144886197. The next prime is 166144886221. The reversal of 166144886208 is 802688441661.

It is a happy number.

166144886208 is a `hidden beast` number, since 1 + 6 + 6 + 1 + 4 + 4 + 8 + 8 + 620 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6855666 + ... + 6879857.

Almost surely, 2^166144886208 is an apocalyptic number.

166144886208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

166144886208 is an abundant number, since it is smaller than the sum of its proper divisors (392066809152).

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

166144886208 is a wasteful number, since it uses less digits than its factorization.

166144886208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13735551 (or 13735535 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 54.

The spelling of 166144886208 in words is "one hundred sixty-six billion, one hundred forty-four million, eight hundred eighty-six thousand, two hundred eight".