1555135005205 has 8 divisors (see below), whose sum is σ = 1866168895392. Its totient is φ = 1244103411408.

The previous prime is 1555135005163. The next prime is 1555135005241. The reversal of 1555135005205 is 5025005315551.

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 1555135005205 - 2⁹ = 1555135004693 is a prime.

It is a super-3 number, since 3×1555135005205³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

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, 1834174 + ... + 2544496.

It is an arithmetic number, because the mean of its divisors is an integer number (233271111924).

Almost surely, 2^{1555135005205} is an apocalyptic number.

It is an amenable number.

1555135005205 is a deficient number, since it is larger than the sum of its proper divisors (311033890187).

1555135005205 is an equidigital number, since it uses as much as digits as its factorization.

1555135005205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148195.

The product of its (nonzero) digits is 93750, while the sum is 37.

The spelling of 1555135005205 in words is "one trillion, five hundred fifty-five billion, one hundred thirty-five million, five thousand, two hundred five".