1355445451603 has 4 divisors (see below), whose sum is σ = 1355448676680. Its totient is φ = 1355442226528.

The previous prime is 1355445451589. The next prime is 1355445451609. The reversal of 1355445451603 is 3061545445531.

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

It is a cyclic number.

It is not a de Polignac number, because 1355445451603 - 2⁵ = 1355445451571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1355445451609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 867313 + ... + 1860946.

It is an arithmetic number, because the mean of its divisors is an integer number (338862169170).

Almost surely, 2^{1355445451603} is an apocalyptic number.

1355445451603 is a deficient number, since it is larger than the sum of its proper divisors (3225077).

1355445451603 is an equidigital number, since it uses as much as digits as its factorization.

1355445451603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3225076.

The product of its (nonzero) digits is 2160000, while the sum is 46.

The spelling of 1355445451603 in words is "one trillion, three hundred fifty-five billion, four hundred forty-five million, four hundred fifty-one thousand, six hundred three".