221834065634 has 16 divisors (see below), whose sum is σ = 335354570496. Its totient is φ = 110049529200.

The previous prime is 221834065633. The next prime is 221834065681. The reversal of 221834065634 is 436560438122.

It is not an unprimeable number, because it can be changed into a prime (221834065633) 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, 1357679 + ... + 1512269.

It is an arithmetic number, because the mean of its divisors is an integer number (20959660656).

Almost surely, 2^221834065634 is an apocalyptic number.

221834065634 is a deficient number, since it is larger than the sum of its proper divisors (113520504862).

221834065634 is a wasteful number, since it uses less digits than its factorization.

221834065634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160201.

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 221834065634 in words is "two hundred twenty-one billion, eight hundred thirty-four million, sixty-five thousand, six hundred thirty-four".