166366507216 has 40 divisors (see below), whose sum is σ = 396720136064. Its totient is φ = 65815320960.

The previous prime is 166366507123. The next prime is 166366507243. The reversal of 166366507216 is 612705663661.

166366507216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 166366507216.

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 7 ways as a sum of consecutive naturals, for example, 57129900 + ... + 57132811.

Almost surely, 2^166366507216 is an apocalyptic number.

166366507216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166366507216 is an abundant number, since it is smaller than the sum of its proper divisors (230353628848).

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

166366507216 is a wasteful number, since it uses less digits than its factorization.

166366507216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114262739 (or 114262733 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 166366507216 in words is "one hundred sixty-six billion, three hundred sixty-six million, five hundred seven thousand, two hundred sixteen".