10021450505 has 24 divisors (see below), whose sum is σ = 13239828672. Its totient is φ = 7276500000.

The previous prime is 10021450501. The next prime is 10021450529. The reversal of 10021450505 is 50505412001.

It is a happy number.

It is not a de Polignac number, because 10021450505 - 2² = 10021450501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021450501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 368630 + ... + 394880.

It is an arithmetic number, because the mean of its divisors is an integer number (551659528).

Almost surely, 2^10021450505 is an apocalyptic number.

It is an amenable number.

10021450505 is a deficient number, since it is larger than the sum of its proper divisors (3218378167).

10021450505 is a wasteful number, since it uses less digits than its factorization.

10021450505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26909 (or 26898 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

Adding to 10021450505 its reverse (50505412001), we get a palindrome (60526862506).

The spelling of 10021450505 in words is "ten billion, twenty-one million, four hundred fifty thousand, five hundred five".