1361664455 has 8 divisors (see below), whose sum is σ = 1636126800. Its totient is φ = 1087911936.

The previous prime is 1361664443. The next prime is 1361664497. The reversal of 1361664455 is 5544661631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1361664455 - 2⁶ = 1361664391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173225 + ... + 180914.

It is an arithmetic number, because the mean of its divisors is an integer number (204515850).

Almost surely, 2^1361664455 is an apocalyptic number.

1361664455 is a deficient number, since it is larger than the sum of its proper divisors (274462345).

1361664455 is an equidigital number, since it uses as much as digits as its factorization.

1361664455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354913.

The product of its digits is 259200, while the sum is 41.

The square root of 1361664455 is about 36900.7378652514. The cubic root of 1361664455 is about 1108.3834529631.

The spelling of 1361664455 in words is "one billion, three hundred sixty-one million, six hundred sixty-four thousand, four hundred fifty-five".