6525144243651 has 192 divisors, whose sum is σ = 10495473730560. Its totient is φ = 3591713664000.

The previous prime is 6525144243643. The next prime is 6525144243689. The reversal of 6525144243651 is 1563424415256.

It is not a de Polignac number, because 6525144243651 - 2³ = 6525144243643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6525144243651.

It is not an unprimeable number, because it can be changed into a prime (6525144242651) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3986037205 + ... + 3986038841.

It is an arithmetic number, because the mean of its divisors is an integer number (54663925680).

Almost surely, 2^{6525144243651} is an apocalyptic number.

6525144243651 is a deficient number, since it is larger than the sum of its proper divisors (3970329486909).

6525144243651 is a wasteful number, since it uses less digits than its factorization.

6525144243651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978 (or 1967 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 48.

The spelling of 6525144243651 in words is "six trillion, five hundred twenty-five billion, one hundred forty-four million, two hundred forty-three thousand, six hundred fifty-one".