15220020026 has 16 divisors (see below), whose sum is σ = 23175126240. Its totient is φ = 7495020720.

The previous prime is 15220020007. The next prime is 15220020061. The reversal of 15220020026 is 62002002251.

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, 1392041 + ... + 1402931.

It is an arithmetic number, because the mean of its divisors is an integer number (1448445390).

Almost surely, 2^15220020026 is an apocalyptic number.

15220020026 is a deficient number, since it is larger than the sum of its proper divisors (7955106214).

15220020026 is a wasteful number, since it uses less digits than its factorization.

15220020026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21389.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 15220020026 its reverse (62002002251), we get a palindrome (77222022277).

The spelling of 15220020026 in words is "fifteen billion, two hundred twenty million, twenty thousand, twenty-six".