21065050004330 has 128 divisors (see below), whose sum is σ = 40717056796416. Its totient is φ = 7818765926400.

The previous prime is 21065050004293. The next prime is 21065050004413. The reversal of 21065050004330 is 3340005056012.

It is a junction number, because it is equal to n+sod(n) for n = 21065050004293 and 21065050004302.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3786632129 + ... + 3786637691.

It is an arithmetic number, because the mean of its divisors is an integer number (318102006222).

Almost surely, 2^{21065050004330} is an apocalyptic number.

21065050004330 is a deficient number, since it is larger than the sum of its proper divisors (19652006792086).

21065050004330 is a wasteful number, since it uses less digits than its factorization.

21065050004330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6792.

The product of its (nonzero) digits is 10800, while the sum is 29.

The spelling of 21065050004330 in words is "twenty-one trillion, sixty-five billion, fifty million, four thousand, three hundred thirty".