200518156801 has 4 divisors (see below), whose sum is σ = 200687086512. Its totient is φ = 200349227092.

The previous prime is 200518156799. The next prime is 200518156823. The reversal of 200518156801 is 108651815002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 108651815002 = 2 ⋅54325907501.

It is a cyclic number.

It is not a de Polignac number, because 200518156801 - 2¹ = 200518156799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200518156001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84463075 + ... + 84465448.

It is an arithmetic number, because the mean of its divisors is an integer number (50171771628).

Almost surely, 2^200518156801 is an apocalyptic number.

It is an amenable number.

200518156801 is a deficient number, since it is larger than the sum of its proper divisors (168929711).

200518156801 is a wasteful number, since it uses less digits than its factorization.

200518156801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168929710.

The product of its (nonzero) digits is 19200, while the sum is 37.

The spelling of 200518156801 in words is "two hundred billion, five hundred eighteen million, one hundred fifty-six thousand, eight hundred one".