2165730654 has 16 divisors (see below), whose sum is σ = 4369794192. Its totient is φ = 715521408.

The previous prime is 2165730653. The next prime is 2165730667. The reversal of 2165730654 is 4560375612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165730653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1596469 + ... + 1597824.

It is an arithmetic number, because the mean of its divisors is an integer number (273112137).

Almost surely, 2^2165730654 is an apocalyptic number.

2165730654 is an abundant number, since it is smaller than the sum of its proper divisors (2204063538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2165730654 is a wasteful number, since it uses less digits than its factorization.

2165730654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194411.

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 2165730654 is about 46537.4113375465. The cubic root of 2165730654 is about 1293.8029822826.

The spelling of 2165730654 in words is "two billion, one hundred sixty-five million, seven hundred thirty thousand, six hundred fifty-four".