523303205202164 has 12 divisors (see below), whose sum is σ = 915780777413124. Its totient is φ = 261651554512704.

The previous prime is 523303205202163. The next prime is 523303205202233. The reversal of 523303205202164 is 461202502303325.

It can be written as a sum of positive squares in 2 ways, for example, as 360851815210000 + 162451389992164 = 18996100^2 + 12745642^2 .

It is a super-2 number, since 2×523303205202164² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523303205202163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25418234 + ... + 41142350.

It is an arithmetic number, because the mean of its divisors is an integer number (76315064784427).

Almost surely, 2^{523303205202164} is an apocalyptic number.

It is an amenable number.

523303205202164 is a deficient number, since it is larger than the sum of its proper divisors (392477572210960).

523303205202164 is a wasteful number, since it uses less digits than its factorization.

523303205202164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24044194 (or 24044192 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 523303205202164 its reverse (461202502303325), we get a palindrome (984505707505489).

The spelling of 523303205202164 in words is "five hundred twenty-three trillion, three hundred three billion, two hundred five million, two hundred two thousand, one hundred sixty-four".