1351256263664 has 20 divisors (see below), whose sum is σ = 2634120727656. Its totient is φ = 671483172672.

The previous prime is 1351256263657. The next prime is 1351256263711. The reversal of 1351256263664 is 4663626521531.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

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, 259057259 + ... + 259062474.

Almost surely, 2^{1351256263664} is an apocalyptic number.

It is an amenable number.

1351256263664 is a deficient number, since it is larger than the sum of its proper divisors (1282864463992).

1351256263664 is a wasteful number, since it uses less digits than its factorization.

1351256263664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518119904 (or 518119898 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 50.

The spelling of 1351256263664 in words is "one trillion, three hundred fifty-one billion, two hundred fifty-six million, two hundred sixty-three thousand, six hundred sixty-four".