1311620603164 has 6 divisors (see below), whose sum is σ = 2295336055544. Its totient is φ = 655810301580.

The previous prime is 1311620603143. The next prime is 1311620603173. The reversal of 1311620603164 is 4613060261131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163952575392 + ... + 163952575399.

Almost surely, 2^{1311620603164} is an apocalyptic number.

It is an amenable number.

1311620603164 is a deficient number, since it is larger than the sum of its proper divisors (983715452380).

1311620603164 is a wasteful number, since it uses less digits than its factorization.

1311620603164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327905150795 (or 327905150793 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

Adding to 1311620603164 its reverse (4613060261131), we get a palindrome (5924680864295).

The spelling of 1311620603164 in words is "one trillion, three hundred eleven billion, six hundred twenty million, six hundred three thousand, one hundred sixty-four".