20541214515 has 16 divisors (see below), whose sum is σ = 32869440000. Its totient is φ = 10954148832.

The previous prime is 20541214453. The next prime is 20541214517. The reversal of 20541214515 is 51541214502.

It is not a de Polignac number, because 20541214515 - 2¹⁸ = 20540952371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20541214517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83686 + ... + 219284.

It is an arithmetic number, because the mean of its divisors is an integer number (2054340000).

Almost surely, 2^20541214515 is an apocalyptic number.

20541214515 is a deficient number, since it is larger than the sum of its proper divisors (12328225485).

20541214515 is a wasteful number, since it uses less digits than its factorization.

20541214515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145706.

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 20541214515 in words is "twenty billion, five hundred forty-one million, two hundred fourteen thousand, five hundred fifteen".