202661324663 has 16 divisors (see below), whose sum is σ = 238268729664. Its totient is φ = 168733497600.

The previous prime is 202661324659. The next prime is 202661324707. The reversal of 202661324663 is 366423166202.

It is not a de Polignac number, because 202661324663 - 2² = 202661324659 is a prime.

It is a super-2 number, since 2×202661324663² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 202661324663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202661321663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495320 + ... + 806637.

It is an arithmetic number, because the mean of its divisors is an integer number (14891795604).

Almost surely, 2^202661324663 is an apocalyptic number.

202661324663 is a deficient number, since it is larger than the sum of its proper divisors (35607405001).

202661324663 is a wasteful number, since it uses less digits than its factorization.

202661324663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302602.

The product of its (nonzero) digits is 373248, while the sum is 41.

The spelling of 202661324663 in words is "two hundred two billion, six hundred sixty-one million, three hundred twenty-four thousand, six hundred sixty-three".