2165416455 has 8 divisors (see below), whose sum is σ = 3464666352. Its totient is φ = 1154888768.

The previous prime is 2165416439. The next prime is 2165416471. The reversal of 2165416455 is 5546145612.

It is an interprime number because it is at equal distance from previous prime (2165416439) and next prime (2165416471).

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 2165416455 - 2⁴ = 2165416439 is a prime.

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, 72180534 + ... + 72180563.

It is an arithmetic number, because the mean of its divisors is an integer number (433083294).

Almost surely, 2^2165416455 is an apocalyptic number.

2165416455 is a deficient number, since it is larger than the sum of its proper divisors (1299249897).

2165416455 is a wasteful number, since it uses less digits than its factorization.

2165416455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144361105.

The product of its digits is 144000, while the sum is 39.

The square root of 2165416455 is about 46534.0354471864. The cubic root of 2165416455 is about 1293.7404119806.

The spelling of 2165416455 in words is "two billion, one hundred sixty-five million, four hundred sixteen thousand, four hundred fifty-five".