166512544616 has 64 divisors (see below), whose sum is σ = 352102766400. Its totient is φ = 73163865600.

The previous prime is 166512544589. The next prime is 166512544631. The reversal of 166512544616 is 616445215661.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181571 + ... + 604973.

It is an arithmetic number, because the mean of its divisors is an integer number (5501605725).

Almost surely, 2^166512544616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166512544616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176051383200).

166512544616 is an abundant number, since it is smaller than the sum of its proper divisors (185590221784).

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

166512544616 is a wasteful number, since it uses less digits than its factorization.

166512544616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423570 (or 423566 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 47.

The spelling of 166512544616 in words is "one hundred sixty-six billion, five hundred twelve million, five hundred forty-four thousand, six hundred sixteen".