6340356561525 has 96 divisors (see below), whose sum is σ = 12028997142528. Its totient is φ = 2886674630400.

The previous prime is 6340356561523. The next prime is 6340356561541. The reversal of 6340356561525 is 5251656530436.

It is not a de Polignac number, because 6340356561525 - 2¹ = 6340356561523 is a prime.

It is a super-2 number, since 2×6340356561525² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6340356561521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 170802267 + ... + 170839383.

It is an arithmetic number, because the mean of its divisors is an integer number (125302053568).

Almost surely, 2^{6340356561525} is an apocalyptic number.

It is an amenable number.

6340356561525 is a deficient number, since it is larger than the sum of its proper divisors (5688640581003).

6340356561525 is a wasteful number, since it uses less digits than its factorization.

6340356561525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38451 (or 38446 counting only the distinct ones).

The product of its (nonzero) digits is 9720000, while the sum is 51.

The spelling of 6340356561525 in words is "six trillion, three hundred forty billion, three hundred fifty-six million, five hundred sixty-one thousand, five hundred twenty-five".