2665558555662 has 32 divisors (see below), whose sum is σ = 5578507068192. Its totient is φ = 848194049664.

The previous prime is 2665558555633. The next prime is 2665558555663.

2665558555662 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2665558555593 and 2665558555602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665558555663) 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, 113262013 + ... + 113285544.

It is an arithmetic number, because the mean of its divisors is an integer number (174328345881).

Almost surely, 2^{2665558555662} is an apocalyptic number.

2665558555662 is an abundant number, since it is smaller than the sum of its proper divisors (2912948512530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2665558555662 is a wasteful number, since it uses less digits than its factorization.

2665558555662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226547652.

The product of its digits is 648000000, while the sum is 66.

The spelling of 2665558555662 in words is "two trillion, six hundred sixty-five billion, five hundred fifty-eight million, five hundred fifty-five thousand, six hundred sixty-two".