200161400072 has 8 divisors (see below), whose sum is σ = 375302625150. Its totient is φ = 100080700032.

The previous prime is 200161399993. The next prime is 200161400093. The reversal of 200161400072 is 270004161002.

It can be written as a sum of positive squares in only one way, i.e., 200161391236 + 8836 = 447394^2 + 94^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12510087497 + ... + 12510087512.

Almost surely, 2^200161400072 is an apocalyptic number.

It is an amenable number.

200161400072 is a deficient number, since it is larger than the sum of its proper divisors (175141225078).

200161400072 is a wasteful number, since it uses less digits than its factorization.

200161400072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25020175015 (or 25020175011 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 200161400072 its reverse (270004161002), we get a palindrome (470165561074).

The spelling of 200161400072 in words is "two hundred billion, one hundred sixty-one million, four hundred thousand, seventy-two".