2155360611 has 16 divisors (see below), whose sum is σ = 2950133760. Its totient is φ = 1398895680.

The previous prime is 2155360607. The next prime is 2155360619. The reversal of 2155360611 is 1160635512.

It is not a de Polignac number, because 2155360611 - 2² = 2155360607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2155360619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40626 + ... + 77208.

It is an arithmetic number, because the mean of its divisors is an integer number (184383360).

Almost surely, 2^2155360611 is an apocalyptic number.

2155360611 is a deficient number, since it is larger than the sum of its proper divisors (794773149).

2155360611 is a wasteful number, since it uses less digits than its factorization.

2155360611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37106.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 2155360611 is about 46425.8614459657. The cubic root of 2155360611 is about 1291.7346635273.

The spelling of 2155360611 in words is "two billion, one hundred fifty-five million, three hundred sixty thousand, six hundred eleven".