2165245141147 has 4 divisors (see below), whose sum is σ = 2362085608536. Its totient is φ = 1968404673760.

The previous prime is 2165245141109. The next prime is 2165245141159. The reversal of 2165245141147 is 7411415425612.

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 2165245141147 - 2¹⁹ = 2165244616859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2165245141447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98420233678 + ... + 98420233699.

It is an arithmetic number, because the mean of its divisors is an integer number (590521402134).

Almost surely, 2^{2165245141147} is an apocalyptic number.

2165245141147 is a deficient number, since it is larger than the sum of its proper divisors (196840467389).

2165245141147 is a wasteful number, since it uses less digits than its factorization.

2165245141147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196840467388.

The product of its digits is 268800, while the sum is 43.

The spelling of 2165245141147 in words is "two trillion, one hundred sixty-five billion, two hundred forty-five million, one hundred forty-one thousand, one hundred forty-seven".