166155052800 has 216 divisors, whose sum is σ = 598196712960. Its totient is φ = 40279961600.

The previous prime is 166155052799. The next prime is 166155052831. The reversal of 166155052800 is 8250551661.

166155052800 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 182160 + ... + 604559.

Almost surely, 2^166155052800 is an apocalyptic number.

166155052800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166155052800 is an abundant number, since it is smaller than the sum of its proper divisors (432041660160).

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

166155052800 is a wasteful number, since it uses less digits than its factorization.

166155052800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786759 (or 786740 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 39.

The spelling of 166155052800 in words is "one hundred sixty-six billion, one hundred fifty-five million, fifty-two thousand, eight hundred".