1296502964816 has 10 divisors (see below), whose sum is σ = 2511974494362. Its totient is φ = 648251482400.

The previous prime is 1296502964803. The next prime is 1296502964821. The reversal of 1296502964816 is 6184692056921.

It can be written as a sum of positive squares in only one way, i.e., 830095921216 + 466407043600 = 911096^2 + 682940^2 .

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, 40515717635 + ... + 40515717666.

Almost surely, 2^{1296502964816} is an apocalyptic number.

1296502964816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1296502964816 is a deficient number, since it is larger than the sum of its proper divisors (1215471529546).

1296502964816 is an equidigital number, since it uses as much as digits as its factorization.

1296502964816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81031435309 (or 81031435303 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 59.

The spelling of 1296502964816 in words is "one trillion, two hundred ninety-six billion, five hundred two million, nine hundred sixty-four thousand, eight hundred sixteen".