1366220459503 has 8 divisors (see below), whose sum is σ = 1378322453376. Its totient is φ = 1354143811800.

The previous prime is 1366220459479. The next prime is 1366220459519. The reversal of 1366220459503 is 3059540226631.

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 1366220459503 - 2⁹ = 1366220458991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366220459533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6228253 + ... + 6443878.

It is an arithmetic number, because the mean of its divisors is an integer number (172290306672).

Almost surely, 2^{1366220459503} is an apocalyptic number.

1366220459503 is a deficient number, since it is larger than the sum of its proper divisors (12101993873).

1366220459503 is a wasteful number, since it uses less digits than its factorization.

1366220459503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12673085.

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 1366220459503 in words is "one trillion, three hundred sixty-six billion, two hundred twenty million, four hundred fifty-nine thousand, five hundred three".