21200514514 has 16 divisors (see below), whose sum is σ = 32249805120. Its totient is φ = 10451478960.

The previous prime is 21200514509. The next prime is 21200514539. The reversal of 21200514514 is 41541500212.

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, 177532 + ... + 271879.

It is an arithmetic number, because the mean of its divisors is an integer number (2015612820).

Almost surely, 2^21200514514 is an apocalyptic number.

21200514514 is a deficient number, since it is larger than the sum of its proper divisors (11049290606).

21200514514 is a wasteful number, since it uses less digits than its factorization.

21200514514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449745.

The product of its (nonzero) digits is 1600, while the sum is 25.

The spelling of 21200514514 in words is "twenty-one billion, two hundred million, five hundred fourteen thousand, five hundred fourteen".