21364050662 has 8 divisors (see below), whose sum is σ = 32497429392. Its totient is φ = 10531574200.

The previous prime is 21364050647. The next prime is 21364050667. The reversal of 21364050662 is 26605046312.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21364050667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75225389 + ... + 75225672.

It is an arithmetic number, because the mean of its divisors is an integer number (4062178674).

Almost surely, 2^21364050662 is an apocalyptic number.

21364050662 is a deficient number, since it is larger than the sum of its proper divisors (11133378730).

21364050662 is a wasteful number, since it uses less digits than its factorization.

21364050662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150451134.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 21364050662 its reverse (26605046312), we get a palindrome (47969096974).

The spelling of 21364050662 in words is "twenty-one billion, three hundred sixty-four million, fifty thousand, six hundred sixty-two".