166650530453540 has 96 divisors (see below), whose sum is σ = 424271198260224. Its totient is φ = 53676903536640.

The previous prime is 166650530453443. The next prime is 166650530453581. The reversal of 166650530453540 is 45354035056661.

166650530453540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63427052 + ... + 66002211.

It is an arithmetic number, because the mean of its divisors is an integer number (4419491648544).

Almost surely, 2^{166650530453540} is an apocalyptic number.

166650530453540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166650530453540 is an abundant number, since it is smaller than the sum of its proper divisors (257620667806684).

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

166650530453540 is a wasteful number, since it uses less digits than its factorization.

166650530453540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129429837 (or 129429835 counting only the distinct ones).

The product of its (nonzero) digits is 19440000, while the sum is 53.

The spelling of 166650530453540 in words is "one hundred sixty-six trillion, six hundred fifty billion, five hundred thirty million, four hundred fifty-three thousand, five hundred forty".