2666405464 has 16 divisors (see below), whose sum is σ = 5171907600. Its totient is φ = 1287230112.

The previous prime is 2666405459. The next prime is 2666405471. The reversal of 2666405464 is 4645046662.

It is a self number, because there is not a number n which added to its sum of digits gives 2666405464.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5746332 + ... + 5746795.

It is an arithmetic number, because the mean of its divisors is an integer number (323244225).

Almost surely, 2^2666405464 is an apocalyptic number.

It is an amenable number.

2666405464 is a deficient number, since it is larger than the sum of its proper divisors (2505502136).

2666405464 is a wasteful number, since it uses less digits than its factorization.

2666405464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11493162 (or 11493158 counting only the distinct ones).

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

The square root of 2666405464 is about 51637.2488035527. The cubic root of 2666405464 is about 1386.6772702694.

The spelling of 2666405464 in words is "two billion, six hundred sixty-six million, four hundred five thousand, four hundred sixty-four".