21033401514 has 16 divisors (see below), whose sum is σ = 43895794752. Its totient is φ = 6706301888.

The previous prime is 21033401509. The next prime is 21033401569. The reversal of 21033401514 is 41510433012.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

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, 76207839 + ... + 76208114.

It is an arithmetic number, because the mean of its divisors is an integer number (2743487172).

Almost surely, 2^21033401514 is an apocalyptic number.

21033401514 is an abundant number, since it is smaller than the sum of its proper divisors (22862393238).

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

21033401514 is a wasteful number, since it uses less digits than its factorization.

21033401514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152415981.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 21033401514 its reverse (41510433012), we get a palindrome (62543834526).

The spelling of 21033401514 in words is "twenty-one billion, thirty-three million, four hundred one thousand, five hundred fourteen".