1366553682623 has 8 divisors (see below), whose sum is σ = 1371348745728. Its totient is φ = 1361765011104.

The previous prime is 1366553682619. The next prime is 1366553682713. The reversal of 1366553682623 is 3262863556631.

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 1366553682623 - 2² = 1366553682619 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 (1366553684623) 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, 1169336 + ... + 2024957.

It is an arithmetic number, because the mean of its divisors is an integer number (171418593216).

Almost surely, 2^{1366553682623} is an apocalyptic number.

1366553682623 is a deficient number, since it is larger than the sum of its proper divisors (4795063105).

1366553682623 is a wasteful number, since it uses less digits than its factorization.

1366553682623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3195793.

The product of its digits is 27993600, while the sum is 56.

The spelling of 1366553682623 in words is "one trillion, three hundred sixty-six billion, five hundred fifty-three million, six hundred eighty-two thousand, six hundred twenty-three".