1351165661343 has 6 divisors (see below), whose sum is σ = 1951683733064. Its totient is φ = 900777107556.

The previous prime is 1351165661311. The next prime is 1351165661431. The reversal of 1351165661343 is 3431665611531.

1351165661343 is a `hidden beast` number, since 1 + 3 + 51 + 1 + 6 + 566 + 1 + 34 + 3 = 666.

It is not a de Polignac number, because 1351165661343 - 2⁵ = 1351165661311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351165661303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75064758955 + ... + 75064758972.

Almost surely, 2^{1351165661343} is an apocalyptic number.

1351165661343 is a deficient number, since it is larger than the sum of its proper divisors (600518071721).

1351165661343 is a wasteful number, since it uses less digits than its factorization.

1351165661343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150129517933 (or 150129517930 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The spelling of 1351165661343 in words is "one trillion, three hundred fifty-one billion, one hundred sixty-five million, six hundred sixty-one thousand, three hundred forty-three".