1355145155665 has 24 divisors (see below), whose sum is σ = 1901576120832. Its totient is φ = 924377217120.

The previous prime is 1355145155647. The next prime is 1355145155677. The reversal of 1355145155665 is 5665515415531.

It is not a de Polignac number, because 1355145155665 - 2⁹ = 1355145155153 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14432799 + ... + 14526388.

It is an arithmetic number, because the mean of its divisors is an integer number (79232338368).

Almost surely, 2^{1355145155665} is an apocalyptic number.

It is an amenable number.

1355145155665 is a deficient number, since it is larger than the sum of its proper divisors (546430965167).

1355145155665 is a wasteful number, since it uses less digits than its factorization.

1355145155665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28959397 (or 28959390 counting only the distinct ones).

The product of its digits is 6750000, while the sum is 52.

The spelling of 1355145155665 in words is "one trillion, three hundred fifty-five billion, one hundred forty-five million, one hundred fifty-five thousand, six hundred sixty-five".