205363166016 has 56 divisors (see below), whose sum is σ = 544437198144. Its totient is φ = 68318264320.

The previous prime is 205363166009. The next prime is 205363166039. The reversal of 205363166016 is 610661363502.

It is a happy number.

It is a super-2 number, since 2×205363166016² (a number of 23 digits) contains 22 as substring.

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, 966645 + ... + 1159796.

It is an arithmetic number, because the mean of its divisors is an integer number (9722092824).

Almost surely, 2^205363166016 is an apocalyptic number.

It is an amenable number.

205363166016 is an abundant number, since it is smaller than the sum of its proper divisors (339074032128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205363166016 is a wasteful number, since it uses less digits than its factorization.

205363166016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126959 (or 2126949 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 39.

The spelling of 205363166016 in words is "two hundred five billion, three hundred sixty-three million, one hundred sixty-six thousand, sixteen".