20151413441 has 4 divisors (see below), whose sum is σ = 20178535872. Its totient is φ = 20124291012.

The previous prime is 20151413431. The next prime is 20151413459. The reversal of 20151413441 is 14431415102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20151413441 - 2⁶ = 20151413377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20151413441.

It is not an unprimeable number, because it can be changed into a prime (20151413431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13560101 + ... + 13561586.

It is an arithmetic number, because the mean of its divisors is an integer number (5044633968).

Almost surely, 2^20151413441 is an apocalyptic number.

It is an amenable number.

20151413441 is a deficient number, since it is larger than the sum of its proper divisors (27122431).

20151413441 is an equidigital number, since it uses as much as digits as its factorization.

20151413441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27122430.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 20151413441 its reverse (14431415102), we get a palindrome (34582828543).

The spelling of 20151413441 in words is "twenty billion, one hundred fifty-one million, four hundred thirteen thousand, four hundred forty-one".