20328285415 has 32 divisors (see below), whose sum is σ = 26709393600. Its totient is φ = 14792853504.

The previous prime is 20328285413. The next prime is 20328285437. The reversal of 20328285415 is 51458282302.

It is a cyclic number.

It is not a de Polignac number, because 20328285415 - 2¹ = 20328285413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20328285413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268161 + ... + 335509.

It is an arithmetic number, because the mean of its divisors is an integer number (834668550).

Almost surely, 2^20328285415 is an apocalyptic number.

20328285415 is a deficient number, since it is larger than the sum of its proper divisors (6381108185).

20328285415 is a wasteful number, since it uses less digits than its factorization.

20328285415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67491.

The product of its (nonzero) digits is 153600, while the sum is 40.

The spelling of 20328285415 in words is "twenty billion, three hundred twenty-eight million, two hundred eighty-five thousand, four hundred fifteen".