166240826052 has 144 divisors (see below), whose sum is σ = 459099648000. Its totient is φ = 45861975360.

The previous prime is 166240826029. The next prime is 166240826099. The reversal of 166240826052 is 250628042661.

It is a happy number.

166240826052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 166240825995 and 166240826013.

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 47 ways as a sum of consecutive naturals, for example, 40279213 + ... + 40283339.

It is an arithmetic number, because the mean of its divisors is an integer number (3188192000).

Almost surely, 2^166240826052 is an apocalyptic number.

166240826052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166240826052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229549824000).

166240826052 is an abundant number, since it is smaller than the sum of its proper divisors (292858821948).

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

166240826052 is a wasteful number, since it uses less digits than its factorization.

166240826052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4702 (or 4669 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 166240826052 in words is "one hundred sixty-six billion, two hundred forty million, eight hundred twenty-six thousand, fifty-two".