2115111166611 has 8 divisors (see below), whose sum is σ = 2866380160464. Its totient is φ = 1386958141920.

The previous prime is 2115111166607. The next prime is 2115111166621. The reversal of 2115111166611 is 1166611115112.

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

It is not a de Polignac number, because 2115111166611 - 2² = 2115111166607 is a prime.

It is a super-3 number, since 3×2115111166611³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2115111166621) 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, 5778992076 + ... + 5778992441.

It is an arithmetic number, because the mean of its divisors is an integer number (358297520058).

Almost surely, 2^{2115111166611} is an apocalyptic number.

2115111166611 is a deficient number, since it is larger than the sum of its proper divisors (751268993853).

2115111166611 is a wasteful number, since it uses less digits than its factorization.

2115111166611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11557984581.

The product of its digits is 2160, while the sum is 33.

The spelling of 2115111166611 in words is "two trillion, one hundred fifteen billion, one hundred eleven million, one hundred sixty-six thousand, six hundred eleven".