2136647555 has 16 divisors (see below), whose sum is σ = 3001731264. Its totient is φ = 1429393920.

The previous prime is 2136647551. The next prime is 2136647561. The reversal of 2136647555 is 5557466312.

It is a happy number.

It is not a de Polignac number, because 2136647555 - 2² = 2136647551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2136647551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743042 + ... + 745911.

It is an arithmetic number, because the mean of its divisors is an integer number (187608204).

Almost surely, 2^2136647555 is an apocalyptic number.

2136647555 is a deficient number, since it is larger than the sum of its proper divisors (865083709).

2136647555 is a wasteful number, since it uses less digits than its factorization.

2136647555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489006.

The product of its digits is 756000, while the sum is 44.

The square root of 2136647555 is about 46223.8851136509. The cubic root of 2136647555 is about 1287.9854691065.

It can be divided in two parts, 21366 and 47555, that added together give a cube (68921 = 41³).

The spelling of 2136647555 in words is "two billion, one hundred thirty-six million, six hundred forty-seven thousand, five hundred fifty-five".