215111617201711 has 8 divisors (see below), whose sum is σ = 220147377957584. Its totient is φ = 210077363946240.

The previous prime is 215111617201667. The next prime is 215111617201729. The reversal of 215111617201711 is 117102716111512.

215111617201711 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-215111617201711 is a prime.

It is a super-2 number, since 2×215111617201711² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215111617202711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376586370 + ... + 377157151.

It is an arithmetic number, because the mean of its divisors is an integer number (27518422244698).

Almost surely, 2^{215111617201711} is an apocalyptic number.

215111617201711 is a deficient number, since it is larger than the sum of its proper divisors (5035760755873).

215111617201711 is an equidigital number, since it uses as much as digits as its factorization.

215111617201711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753750201.

The product of its (nonzero) digits is 5880, while the sum is 37.

The spelling of 215111617201711 in words is "two hundred fifteen trillion, one hundred eleven billion, six hundred seventeen million, two hundred one thousand, seven hundred eleven".