2111662555 has 8 divisors (see below), whose sum is σ = 2549542032. Its totient is φ = 1678965408.

The previous prime is 2111662547. The next prime is 2111662607. The reversal of 2111662555 is 5552661112.

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

It is a cyclic number.

It is not a de Polignac number, because 2111662555 - 2³ = 2111662547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2111662555.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294684 + ... + 1296313.

It is an arithmetic number, because the mean of its divisors is an integer number (318692754).

Almost surely, 2^2111662555 is an apocalyptic number.

2111662555 is a deficient number, since it is larger than the sum of its proper divisors (437879477).

2111662555 is a wasteful number, since it uses less digits than its factorization.

2111662555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591165.

The product of its digits is 18000, while the sum is 34.

The square root of 2111662555 is about 45952.8296734815. The cubic root of 2111662555 is about 1282.9453971453.

The spelling of 2111662555 in words is "two billion, one hundred eleven million, six hundred sixty-two thousand, five hundred fifty-five".