163201455017111 has 4 divisors (see below), whose sum is σ = 186515948590992. Its totient is φ = 139886961443232.

The previous prime is 163201455017033. The next prime is 163201455017113. The reversal of 163201455017111 is 111710554102361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163201455017111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163201455017113) 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, 11657246786930 + ... + 11657246786943.

It is an arithmetic number, because the mean of its divisors is an integer number (46628987147748).

Almost surely, 2^{163201455017111} is an apocalyptic number.

163201455017111 is a deficient number, since it is larger than the sum of its proper divisors (23314493573881).

163201455017111 is an equidigital number, since it uses as much as digits as its factorization.

163201455017111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23314493573880.

The product of its (nonzero) digits is 25200, while the sum is 38.

The spelling of 163201455017111 in words is "one hundred sixty-three trillion, two hundred one billion, four hundred fifty-five million, seventeen thousand, one hundred eleven".