1351256463555 has 16 divisors (see below), whose sum is σ = 2162446613664. Its totient is φ = 720524689920.

The previous prime is 1351256463551. The next prime is 1351256463577. The reversal of 1351256463555 is 5553646521531.

It is not a de Polignac number, because 1351256463555 - 2² = 1351256463551 is a prime.

It is a super-3 number, since 3×1351256463555³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1351256463498 and 1351256463507.

It is not an unprimeable number, because it can be changed into a prime (1351256463551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9012166 + ... + 9160875.

It is an arithmetic number, because the mean of its divisors is an integer number (135152913354).

Almost surely, 2^{1351256463555} is an apocalyptic number.

1351256463555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1351256463555 is a deficient number, since it is larger than the sum of its proper divisors (811190150109).

1351256463555 is a wasteful number, since it uses less digits than its factorization.

1351256463555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18178006.

The product of its digits is 8100000, while the sum is 51.

The spelling of 1351256463555 in words is "one trillion, three hundred fifty-one billion, two hundred fifty-six million, four hundred sixty-three thousand, five hundred fifty-five".