4540522521320 has 16 divisors (see below), whose sum is σ = 10216175673060. Its totient is φ = 1816209008512.

The previous prime is 4540522521319. The next prime is 4540522521331. The reversal of 4540522521320 is 231252250454.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4371770810884 + 168751710436 = 2090878^2 + 410794^2 .

It is a super-2 number, since 2×4540522521320² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56756531477 + ... + 56756531556.

Almost surely, 2^{4540522521320} is an apocalyptic number.

4540522521320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4540522521320 is an abundant number, since it is smaller than the sum of its proper divisors (5675653151740).

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

4540522521320 is a wasteful number, since it uses less digits than its factorization.

4540522521320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113513063044 (or 113513063040 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 4540522521320 its reverse (231252250454), we get a palindrome (4771774771774).

The spelling of 4540522521320 in words is "four trillion, five hundred forty billion, five hundred twenty-two million, five hundred twenty-one thousand, three hundred twenty".