20515415241 has 8 divisors (see below), whose sum is σ = 27497101824. Its totient is φ = 13605336080.

The previous prime is 20515415183. The next prime is 20515415251. The reversal of 20515415241 is 14251451502.

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

It is a cyclic number.

It is not a de Polignac number, because 20515415241 - 2⁶ = 20515415177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20515415199 and 20515415208.

It is not an unprimeable number, because it can be changed into a prime (20515415251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17901186 + ... + 17902331.

It is an arithmetic number, because the mean of its divisors is an integer number (3437137728).

Almost surely, 2^20515415241 is an apocalyptic number.

It is an amenable number.

20515415241 is a deficient number, since it is larger than the sum of its proper divisors (6981686583).

20515415241 is a wasteful number, since it uses less digits than its factorization.

20515415241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35803711.

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 20515415241 its reverse (14251451502), we get a palindrome (34766866743).

The spelling of 20515415241 in words is "twenty billion, five hundred fifteen million, four hundred fifteen thousand, two hundred forty-one".