2666403004 has 12 divisors (see below), whose sum is σ = 4666640328. Its totient is φ = 1333077200.

The previous prime is 2666402993. The next prime is 2666403043. The reversal of 2666403004 is 4003046662.

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, 30939 + ... + 79309.

It is an arithmetic number, because the mean of its divisors is an integer number (388886694).

Almost surely, 2^2666403004 is an apocalyptic number.

It is an amenable number.

2666403004 is a deficient number, since it is larger than the sum of its proper divisors (2000237324).

2666403004 is a wasteful number, since it uses less digits than its factorization.

2666403004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62156 (or 62154 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 2666403004 is about 51637.2249835330. The cubic root of 2666403004 is about 1386.6768438243.

Adding to 2666403004 its reverse (4003046662), we get a palindrome (6669449666).

The spelling of 2666403004 in words is "two billion, six hundred sixty-six million, four hundred three thousand, four".