21652556046205 has 32 divisors (see below), whose sum is σ = 30509906676480. Its totient is φ = 14440307166720.

The previous prime is 21652556046113. The next prime is 21652556046217. The reversal of 21652556046205 is 50264065525612.

It is not a de Polignac number, because 21652556046205 - 2¹⁹ = 21652555521917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215376 + ... + 6584185.

It is an arithmetic number, because the mean of its divisors is an integer number (953434583640).

Almost surely, 2^{21652556046205} is an apocalyptic number.

It is an amenable number.

21652556046205 is a deficient number, since it is larger than the sum of its proper divisors (8857350630275).

21652556046205 is a wasteful number, since it uses less digits than its factorization.

21652556046205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6802069.

The product of its (nonzero) digits is 4320000, while the sum is 49.

The spelling of 21652556046205 in words is "twenty-one trillion, six hundred fifty-two billion, five hundred fifty-six million, forty-six thousand, two hundred five".