166156600500 has 144 divisors (see below), whose sum is σ = 571820558400. Its totient is φ = 40280376000.

The previous prime is 166156600469. The next prime is 166156600501. The reversal of 166156600500 is 5006651661.

166156600500 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 (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166156600501) by changing a digit.

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, 1628850 + ... + 1727849.

It is an arithmetic number, because the mean of its divisors is an integer number (3970976100).

Almost surely, 2^166156600500 is an apocalyptic number.

166156600500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166156600500 is an abundant number, since it is smaller than the sum of its proper divisors (405663957900).

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

166156600500 is a wasteful number, since it uses less digits than its factorization.

166156600500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3356735 (or 3356720 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 166156600500 in words is "one hundred sixty-six billion, one hundred fifty-six million, six hundred thousand, five hundred".