2011051065669 has 4 divisors (see below), whose sum is σ = 2681401420896. Its totient is φ = 1340700710444.

The previous prime is 2011051065629. The next prime is 2011051065679. The reversal of 2011051065669 is 9665601501102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2011051065669 - 2³⁹ = 1461295251781 is a prime.

It is a super-3 number, since 3×2011051065669³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2011051065669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011051065629) 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, 335175177609 + ... + 335175177614.

It is an arithmetic number, because the mean of its divisors is an integer number (670350355224).

Almost surely, 2^{2011051065669} is an apocalyptic number.

It is an amenable number.

2011051065669 is a deficient number, since it is larger than the sum of its proper divisors (670350355227).

2011051065669 is an equidigital number, since it uses as much as digits as its factorization.

2011051065669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670350355226.

The product of its (nonzero) digits is 97200, while the sum is 42.

The spelling of 2011051065669 in words is "two trillion, eleven billion, fifty-one million, sixty-five thousand, six hundred sixty-nine".