266464402004 has 6 divisors (see below), whose sum is σ = 466312703514. Its totient is φ = 133232201000.

The previous prime is 266464401949. The next prime is 266464402067. The reversal of 266464402004 is 400204464662.

It can be written as a sum of positive squares in only one way, i.e., 248103610000 + 18360792004 = 498100^2 + 135502^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33308050247 + ... + 33308050254.

It is an arithmetic number, because the mean of its divisors is an integer number (77718783919).

Almost surely, 2^266464402004 is an apocalyptic number.

It is an amenable number.

266464402004 is a deficient number, since it is larger than the sum of its proper divisors (199848301510).

266464402004 is a wasteful number, since it uses less digits than its factorization.

266464402004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66616100505 (or 66616100503 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

Adding to 266464402004 its reverse (400204464662), we get a palindrome (666668866666).

The spelling of 266464402004 in words is "two hundred sixty-six billion, four hundred sixty-four million, four hundred two thousand, four".