1361175552657 has 6 divisors (see below), whose sum is σ = 1966142464962. Its totient is φ = 907450368432.

The previous prime is 1361175552623. The next prime is 1361175552679. The reversal of 1361175552657 is 7562555711631.

1361175552657 is a `hidden beast` number, since 1 + 3 + 6 + 1 + 17 + 55 + 526 + 57 = 666.

It can be written as a sum of positive squares in only one way, i.e., 998318707281 + 362856845376 = 999159^2 + 602376^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1361175552657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1361175552857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75620864028 + ... + 75620864045.

It is an arithmetic number, because the mean of its divisors is an integer number (327690410827).

Almost surely, 2^{1361175552657} is an apocalyptic number.

It is an amenable number.

1361175552657 is a deficient number, since it is larger than the sum of its proper divisors (604966912305).

1361175552657 is a wasteful number, since it uses less digits than its factorization.

1361175552657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151241728079 (or 151241728076 counting only the distinct ones).

The product of its digits is 6615000, while the sum is 54.

The spelling of 1361175552657 in words is "one trillion, three hundred sixty-one billion, one hundred seventy-five million, five hundred fifty-two thousand, six hundred fifty-seven".