2182774012661 has 8 divisors (see below), whose sum is σ = 2521279073664. Its totient is φ = 1867614128320.

The previous prime is 2182774012651. The next prime is 2182774012667. The reversal of 2182774012661 is 1662104772812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2182774012661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2182774012667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5836293965 + ... + 5836294338.

It is an arithmetic number, because the mean of its divisors is an integer number (315159884208).

Almost surely, 2^{2182774012661} is an apocalyptic number.

It is an amenable number.

2182774012661 is a deficient number, since it is larger than the sum of its proper divisors (338505061003).

2182774012661 is a wasteful number, since it uses less digits than its factorization.

2182774012661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11672588331.

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 2182774012661 in words is "two trillion, one hundred eighty-two billion, seven hundred seventy-four million, twelve thousand, six hundred sixty-one".