21332414245 has 16 divisors (see below), whose sum is σ = 26430064128. Its totient is φ = 16512045120.

The previous prime is 21332414231. The next prime is 21332414263. The reversal of 21332414245 is 54241423312.

It is not a de Polignac number, because 21332414245 - 2⁹ = 21332413733 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 968242 + ... + 990028.

It is an arithmetic number, because the mean of its divisors is an integer number (1651879008).

Almost surely, 2^21332414245 is an apocalyptic number.

It is an amenable number.

21332414245 is a deficient number, since it is larger than the sum of its proper divisors (5097649883).

21332414245 is a wasteful number, since it uses less digits than its factorization.

21332414245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28140.

The product of its digits is 23040, while the sum is 31.

Adding to 21332414245 its reverse (54241423312), we get a palindrome (75573837557).

The spelling of 21332414245 in words is "twenty-one billion, three hundred thirty-two million, four hundred fourteen thousand, two hundred forty-five".