1360641205657 has 4 divisors (see below), whose sum is σ = 1360674146916. Its totient is φ = 1360608264400.

The previous prime is 1360641205631. The next prime is 1360641205661. The reversal of 1360641205657 is 7565021460631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 846861903001 + 513779302656 = 920251^2 + 716784^2 .

It is a cyclic number.

It is not a de Polignac number, because 1360641205657 - 2⁷ = 1360641205529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1360641200657) 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 3 ways as a sum of consecutive naturals, for example, 16408594 + ... + 16491307.

It is an arithmetic number, because the mean of its divisors is an integer number (340168536729).

Almost surely, 2^{1360641205657} is an apocalyptic number.

It is an amenable number.

1360641205657 is a deficient number, since it is larger than the sum of its proper divisors (32941259).

1360641205657 is an equidigital number, since it uses as much as digits as its factorization.

1360641205657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32941258.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 1360641205657 in words is "one trillion, three hundred sixty billion, six hundred forty-one million, two hundred five thousand, six hundred fifty-seven".