2155245113345 has 8 divisors (see below), whose sum is σ = 2588713500840. Its totient is φ = 1722583180800.

The previous prime is 2155245113311. The next prime is 2155245113353. The reversal of 2155245113345 is 5433115425512.

It can be written as a sum of positive squares in 4 ways, for example, as 845980531984 + 1309264581361 = 919772^2 + 1144231^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2155245113345 - 2³⁶ = 2086525636609 is a prime.

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, 201607856 + ... + 201618545.

It is an arithmetic number, because the mean of its divisors is an integer number (323589187605).

Almost surely, 2^{2155245113345} is an apocalyptic number.

It is an amenable number.

2155245113345 is a deficient number, since it is larger than the sum of its proper divisors (433468387495).

2155245113345 is a wasteful number, since it uses less digits than its factorization.

2155245113345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403227475.

The product of its digits is 360000, while the sum is 41.

The spelling of 2155245113345 in words is "two trillion, one hundred fifty-five billion, two hundred forty-five million, one hundred thirteen thousand, three hundred forty-five".