20530350415 has 8 divisors (see below), whose sum is σ = 24983412768. Its totient is φ = 16192952160.

The previous prime is 20530350397. The next prime is 20530350427. The reversal of 20530350415 is 51405303502.

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

It is not a de Polignac number, because 20530350415 - 2⁷ = 20530350287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28915632 + ... + 28916341.

It is an arithmetic number, because the mean of its divisors is an integer number (3122926596).

Almost surely, 2^20530350415 is an apocalyptic number.

20530350415 is a deficient number, since it is larger than the sum of its proper divisors (4453062353).

20530350415 is an equidigital number, since it uses as much as digits as its factorization.

20530350415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57832049.

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 20530350415 its reverse (51405303502), we get a palindrome (71935653917).

The spelling of 20530350415 in words is "twenty billion, five hundred thirty million, three hundred fifty thousand, four hundred fifteen".