1319360065956 has 189 divisors, whose sum is σ = 3515779647121. Its totient is φ = 433025828928.

The previous prime is 1319360065927. The next prime is 1319360065963. The reversal of 1319360065956 is 6595600639131.

The square root of 1319360065956 is 1148634.

It is a perfect power (a square), and thus also a powerful number.

1319360065956 is a `hidden beast` number, since 1 + 3 + 19 + 36 + 0 + 0 + 6 + 595 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 253345115556 + 1066014950400 = 503334^2 + 1032480^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 5520334885 + ... + 5520335123.

Almost surely, 2^{1319360065956} is an apocalyptic number.

1319360065956 is the 1148634-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1319360065956

1319360065956 is an abundant number, since it is smaller than the sum of its proper divisors (2196419581165).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1319360065956 is an frugal number, since it uses more digits than its factorization.

1319360065956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 3936600, while the sum is 54.

The spelling of 1319360065956 in words is "one trillion, three hundred nineteen billion, three hundred sixty million, sixty-five thousand, nine hundred fifty-six".