21632045214 has 16 divisors (see below), whose sum is σ = 46592097552. Its totient is φ = 6656013888.

The previous prime is 21632045213. The next prime is 21632045287. The reversal of 21632045214 is 41254023612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21632045213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138666879 + ... + 138667034.

It is an arithmetic number, because the mean of its divisors is an integer number (2912006097).

Almost surely, 2^21632045214 is an apocalyptic number.

21632045214 is an abundant number, since it is smaller than the sum of its proper divisors (24960052338).

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

21632045214 is a wasteful number, since it uses less digits than its factorization.

21632045214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277333931.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 21632045214 its reverse (41254023612), we get a palindrome (62886068826).

The spelling of 21632045214 in words is "twenty-one billion, six hundred thirty-two million, forty-five thousand, two hundred fourteen".