2165936534 has 8 divisors (see below), whose sum is σ = 3251999208. Its totient is φ = 1081936800.

The previous prime is 2165936501. The next prime is 2165936581. The reversal of 2165936534 is 4356395612.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513107 + ... + 517310.

It is an arithmetic number, because the mean of its divisors is an integer number (406499901).

Almost surely, 2^2165936534 is an apocalyptic number.

2165936534 is a deficient number, since it is larger than the sum of its proper divisors (1086062674).

2165936534 is a wasteful number, since it uses less digits than its factorization.

2165936534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031470.

The product of its digits is 583200, while the sum is 44.

The square root of 2165936534 is about 46539.6232687803. The cubic root of 2165936534 is about 1293.8439784113.

The spelling of 2165936534 in words is "two billion, one hundred sixty-five million, nine hundred thirty-six thousand, five hundred thirty-four".