163704730212 has 30 divisors (see below), whose sum is σ = 427956502358. Its totient is φ = 54568243296.

The previous prime is 163704730193. The next prime is 163704730237. The reversal of 163704730212 is 212037407361.

163704730212 is a `hidden beast` number, since 1 + 6 + 370 + 4 + 73 + 0 + 212 = 666.

It can be written as a sum of positive squares in only one way, i.e., 151557604416 + 12147125796 = 389304^2 + 110214^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 252630433 + ... + 252631080.

Almost surely, 2^163704730212 is an apocalyptic number.

163704730212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163704730212 is an abundant number, since it is smaller than the sum of its proper divisors (264251772146).

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

163704730212 is a wasteful number, since it uses less digits than its factorization.

163704730212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505261529 (or 505261518 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The spelling of 163704730212 in words is "one hundred sixty-three billion, seven hundred four million, seven hundred thirty thousand, two hundred twelve".