10521616205 has 8 divisors (see below), whose sum is σ = 12626701152. Its totient is φ = 8416785168.

The previous prime is 10521616169. The next prime is 10521616219. The reversal of 10521616205 is 50261612501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10521616205 - 2¹⁸ = 10521354061 is a prime.

It is a super-2 number, since 2×10521616205² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 44342 + ... + 151688.

It is an arithmetic number, because the mean of its divisors is an integer number (1578337644).

Almost surely, 2^10521616205 is an apocalyptic number.

It is an amenable number.

10521616205 is a deficient number, since it is larger than the sum of its proper divisors (2105084947).

10521616205 is a wasteful number, since it uses less digits than its factorization.

10521616205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126955.

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 10521616205 in words is "ten billion, five hundred twenty-one million, six hundred sixteen thousand, two hundred five".