166238148608 has 384 divisors, whose sum is σ = 426550924800. Its totient is φ = 63120605184.

The previous prime is 166238148589. The next prime is 166238148623. The reversal of 166238148608 is 806841832661.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 166238148608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 303908591 + ... + 303909137.

It is an arithmetic number, because the mean of its divisors is an integer number (1110809700).

Almost surely, 2^166238148608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166238148608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213275462400).

166238148608 is an abundant number, since it is smaller than the sum of its proper divisors (260312776192).

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

166238148608 is a wasteful number, since it uses less digits than its factorization.

166238148608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 53.

The spelling of 166238148608 in words is "one hundred sixty-six billion, two hundred thirty-eight million, one hundred forty-eight thousand, six hundred eight".