20535330815 has 8 divisors (see below), whose sum is σ = 25939365360. Its totient is φ = 15563619072.

The previous prime is 20535330797. The next prime is 20535330857. The reversal of 20535330815 is 51803353502.

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 20535330815 - 2¹² = 20535326719 is a prime.

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, 108080594 + ... + 108080783.

It is an arithmetic number, because the mean of its divisors is an integer number (3242420670).

Almost surely, 2^20535330815 is an apocalyptic number.

20535330815 is a deficient number, since it is larger than the sum of its proper divisors (5404034545).

20535330815 is a wasteful number, since it uses less digits than its factorization.

20535330815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216161401.

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 20535330815 in words is "twenty billion, five hundred thirty-five million, three hundred thirty thousand, eight hundred fifteen".