166105278437376 has 192 divisors, whose sum is σ = 472839518511360. Its totient is φ = 51729447813120.

The previous prime is 166105278437323. The next prime is 166105278437459. The reversal of 166105278437376 is 673734872501661.

It is a tau number, because it is divible by the number of its divisors (192).

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 15 ways as a sum of consecutive naturals, for example, 7591615 + ... + 19744446.

It is an arithmetic number, because the mean of its divisors is an integer number (2462705825580).

Almost surely, 2^{166105278437376} is an apocalyptic number.

166105278437376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166105278437376 is an abundant number, since it is smaller than the sum of its proper divisors (306734240073984).

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

166105278437376 is a wasteful number, since it uses less digits than its factorization.

166105278437376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27336152 (or 27336132 counting only the distinct ones).

The product of its (nonzero) digits is 213373440, while the sum is 66.

The spelling of 166105278437376 in words is "one hundred sixty-six trillion, one hundred five billion, two hundred seventy-eight million, four hundred thirty-seven thousand, three hundred seventy-six".