2666652645011 has 4 divisors (see below), whose sum is σ = 2671002813072. Its totient is φ = 2662302476952.

The previous prime is 2666652644989. The next prime is 2666652645029. The reversal of 2666652645011 is 1105462566662.

2666652645011 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2666652645011 - 2³⁴ = 2649472775827 is a prime.

It is a super-2 number, since 2×2666652645011² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2666652645061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2175083111 + ... + 2175084336.

It is an arithmetic number, because the mean of its divisors is an integer number (667750703268).

Almost surely, 2^{2666652645011} is an apocalyptic number.

2666652645011 is a deficient number, since it is larger than the sum of its proper divisors (4350168061).

2666652645011 is an equidigital number, since it uses as much as digits as its factorization.

2666652645011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4350168060.

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 2666652645011 in words is "two trillion, six hundred sixty-six billion, six hundred fifty-two million, six hundred forty-five thousand, eleven".