1355406311645 has 8 divisors (see below), whose sum is σ = 1664312866656. Its totient is φ = 1059108187536.

The previous prime is 1355406311639. The next prime is 1355406311711. The reversal of 1355406311645 is 5461136045531.

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 1355406311645 - 2¹⁴ = 1355406295261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1355406311596 and 1355406311605.

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, 3152107487 + ... + 3152107916.

It is an arithmetic number, because the mean of its divisors is an integer number (208039108332).

Almost surely, 2^{1355406311645} is an apocalyptic number.

It is an amenable number.

1355406311645 is a deficient number, since it is larger than the sum of its proper divisors (308906555011).

1355406311645 is an equidigital number, since it uses as much as digits as its factorization.

1355406311645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6304215451.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 1355406311645 in words is "one trillion, three hundred fifty-five billion, four hundred six million, three hundred eleven thousand, six hundred forty-five".