5172156111101 has 24 divisors (see below), whose sum is σ = 6023773306080. Its totient is φ = 4427985462432.

The previous prime is 5172156111043. The next prime is 5172156111107. The reversal of 5172156111101 is 1011116512715.

It is a de Polignac number, because none of the positive numbers 2^k-5172156111101 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 (5172156111107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 340871351 + ... + 340886523.

It is an arithmetic number, because the mean of its divisors is an integer number (250990554420).

Almost surely, 2^{5172156111101} is an apocalyptic number.

It is an amenable number.

5172156111101 is a deficient number, since it is larger than the sum of its proper divisors (851617194979).

5172156111101 is a wasteful number, since it uses less digits than its factorization.

5172156111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23033 (or 23026 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 32.

The spelling of 5172156111101 in words is "five trillion, one hundred seventy-two billion, one hundred fifty-six million, one hundred eleven thousand, one hundred one".