166530263144 has 64 divisors (see below), whose sum is σ = 383163644160. Its totient is φ = 66225761280.

The previous prime is 166530263117. The next prime is 166530263149. The reversal of 166530263144 is 441362035661.

It is not an unprimeable number, because it can be changed into a prime (166530263149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1164287 + ... + 1299470.

It is an arithmetic number, because the mean of its divisors is an integer number (5986931940).

Almost surely, 2^166530263144 is an apocalyptic number.

166530263144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

166530263144 is an abundant number, since it is smaller than the sum of its proper divisors (216633381016).

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

166530263144 is a wasteful number, since it uses less digits than its factorization.

166530263144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2463858 (or 2463854 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 166530263144 in words is "one hundred sixty-six billion, five hundred thirty million, two hundred sixty-three thousand, one hundred forty-four".