1351666556116 has 6 divisors (see below), whose sum is σ = 2365416473210. Its totient is φ = 675833278056.

The previous prime is 1351666556087. The next prime is 1351666556179. The reversal of 1351666556116 is 6116556661531.

It can be written as a sum of positive squares in only one way, i.e., 1319847131716 + 31819424400 = 1148846^2 + 178380^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168958319511 + ... + 168958319518.

Almost surely, 2^{1351666556116} is an apocalyptic number.

It is an amenable number.

1351666556116 is a deficient number, since it is larger than the sum of its proper divisors (1013749917094).

1351666556116 is a wasteful number, since it uses less digits than its factorization.

1351666556116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337916639033 (or 337916639031 counting only the distinct ones).

The product of its digits is 2916000, while the sum is 52.

The spelling of 1351666556116 in words is "one trillion, three hundred fifty-one billion, six hundred sixty-six million, five hundred fifty-six thousand, one hundred sixteen".