166304544216 has 64 divisors (see below), whose sum is σ = 440271093600. Its totient is φ = 52167671808.

The previous prime is 166304544209. The next prime is 166304544223. The reversal of 166304544216 is 612445403661.

It is an interprime number because it is at equal distance from previous prime (166304544209) and next prime (166304544223).

It is a congruent number.

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, 4276476 + ... + 4315188.

Almost surely, 2^166304544216 is an apocalyptic number.

It is an amenable number.

166304544216 is an abundant number, since it is smaller than the sum of its proper divisors (273966549384).

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

166304544216 is a wasteful number, since it uses less digits than its factorization.

166304544216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49268 (or 49264 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

Adding to 166304544216 its reverse (612445403661), we get a palindrome (778749947877).

The spelling of 166304544216 in words is "one hundred sixty-six billion, three hundred four million, five hundred forty-four thousand, two hundred sixteen".