20020066215 has 16 divisors (see below), whose sum is σ = 32035500000. Its totient is φ = 10676237312.

The previous prime is 20020066207. The next prime is 20020066229. The reversal of 20020066215 is 51266002002.

It is a cyclic number.

It is not a de Polignac number, because 20020066215 - 2³ = 20020066207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86911 + ... + 218159.

It is an arithmetic number, because the mean of its divisors is an integer number (2002218750).

Almost surely, 2^20020066215 is an apocalyptic number.

20020066215 is a deficient number, since it is larger than the sum of its proper divisors (12015433785).

20020066215 is a wasteful number, since it uses less digits than its factorization.

20020066215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141426.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 20020066215 its reverse (51266002002), we get a palindrome (71286068217).

The spelling of 20020066215 in words is "twenty billion, twenty million, sixty-six thousand, two hundred fifteen".