2664662555 has 4 divisors (see below), whose sum is σ = 3197595072. Its totient is φ = 2131730040.

The previous prime is 2664662551. The next prime is 2664662591. The reversal of 2664662555 is 5552664662.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2664662555 - 2² = 2664662551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2664662551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266466251 + ... + 266466260.

It is an arithmetic number, because the mean of its divisors is an integer number (799398768).

Almost surely, 2^2664662555 is an apocalyptic number.

2664662555 is a deficient number, since it is larger than the sum of its proper divisors (532932517).

2664662555 is an equidigital number, since it uses as much as digits as its factorization.

2664662555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532932516.

The product of its digits is 2592000, while the sum is 47.

The square root of 2664662555 is about 51620.3695744228. The cubic root of 2664662555 is about 1386.3750682832.

The spelling of 2664662555 in words is "two billion, six hundred sixty-four million, six hundred sixty-two thousand, five hundred fifty-five".