2661335144404 has 24 divisors (see below), whose sum is σ = 4701573676800. Its totient is φ = 1318036220640.

The previous prime is 2661335144371. The next prime is 2661335144453. The reversal of 2661335144404 is 4044415331662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381369 + ... + 2338399.

It is an arithmetic number, because the mean of its divisors is an integer number (195898903200).

Almost surely, 2^{2661335144404} is an apocalyptic number.

It is an amenable number.

2661335144404 is a deficient number, since it is larger than the sum of its proper divisors (2040238532396).

2661335144404 is a wasteful number, since it uses less digits than its factorization.

2661335144404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960263 (or 1960261 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 2661335144404 in words is "two trillion, six hundred sixty-one billion, three hundred thirty-five million, one hundred forty-four thousand, four hundred four".