1351645155441 has 48 divisors (see below), whose sum is σ = 2329538964480. Its totient is φ = 772311244320.

The previous prime is 1351645155389. The next prime is 1351645155463. The reversal of 1351645155441 is 1445515461531.

1351645155441 is a `hidden beast` number, since 1 + 3 + 5 + 1 + 6 + 4 + 51 + 554 + 41 = 666.

It is not a de Polignac number, because 1351645155441 - 2²³ = 1351636766833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1351645155541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23084895 + ... + 23143371.

It is an arithmetic number, because the mean of its divisors is an integer number (48532061760).

Almost surely, 2^{1351645155441} is an apocalyptic number.

It is an amenable number.

1351645155441 is a deficient number, since it is larger than the sum of its proper divisors (977893809039).

1351645155441 is a wasteful number, since it uses less digits than its factorization.

1351645155441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75971 (or 75958 counting only the distinct ones).

The product of its digits is 720000, while the sum is 45.

The spelling of 1351645155441 in words is "one trillion, three hundred fifty-one billion, six hundred forty-five million, one hundred fifty-five thousand, four hundred forty-one".