20514411215 has 16 divisors (see below), whose sum is σ = 25078584960. Its totient is φ = 16104980640.

The previous prime is 20514411193. The next prime is 20514411301. The reversal of 20514411215 is 51211441502.

It is a happy number.

It is not a de Polignac number, because 20514411215 - 2²⁴ = 20497633999 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, 107552 + ... + 229338.

It is an arithmetic number, because the mean of its divisors is an integer number (1567411560).

Almost surely, 2^20514411215 is an apocalyptic number.

20514411215 is a deficient number, since it is larger than the sum of its proper divisors (4564173745).

20514411215 is a wasteful number, since it uses less digits than its factorization.

20514411215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122422.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 20514411215 its reverse (51211441502), we get a palindrome (71725852717).

The spelling of 20514411215 in words is "twenty billion, five hundred fourteen million, four hundred eleven thousand, two hundred fifteen".