1373545165555 has 4 divisors (see below), whose sum is σ = 1648254198672. Its totient is φ = 1098836132440.

The previous prime is 1373545165549. The next prime is 1373545165591. The reversal of 1373545165555 is 5555615453731.

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

It is not a de Polignac number, because 1373545165555 - 2¹⁷ = 1373545034483 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1373545165496 and 1373545165505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137354516551 + ... + 137354516560.

It is an arithmetic number, because the mean of its divisors is an integer number (412063549668).

Almost surely, 2^{1373545165555} is an apocalyptic number.

1373545165555 is a deficient number, since it is larger than the sum of its proper divisors (274709033117).

1373545165555 is an equidigital number, since it uses as much as digits as its factorization.

1373545165555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274709033116.

The product of its digits is 23625000, while the sum is 55.

The spelling of 1373545165555 in words is "one trillion, three hundred seventy-three billion, five hundred forty-five million, one hundred sixty-five thousand, five hundred fifty-five".