166466155452 has 24 divisors (see below), whose sum is σ = 388732050000. Its totient is φ = 55444286976.

The previous prime is 166466155451. The next prime is 166466155483. The reversal of 166466155452 is 254551664661.

It is a junction number, because it is equal to n+sod(n) for n = 166466155395 and 166466155404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166466155451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5538327 + ... + 5568302.

It is an arithmetic number, because the mean of its divisors is an integer number (16197168750).

Almost surely, 2^166466155452 is an apocalyptic number.

166466155452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166466155452 is an abundant number, since it is smaller than the sum of its proper divisors (222265894548).

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

166466155452 is a wasteful number, since it uses less digits than its factorization.

166466155452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11107885 (or 11107883 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 51.

The spelling of 166466155452 in words is "one hundred sixty-six billion, four hundred sixty-six million, one hundred fifty-five thousand, four hundred fifty-two".