135657543523502 has 192 divisors, whose sum is σ = 284051928867840. Its totient is φ = 47742505171200.

The previous prime is 135657543523501. The next prime is 135657543523519. The reversal of 135657543523502 is 205325345756531.

It is a happy number.

It is a super-2 number, since 2×135657543523502² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135657543523501) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5947011677 + ... + 5947034487.

It is an arithmetic number, because the mean of its divisors is an integer number (1479437129520).

Almost surely, 2^{135657543523502} is an apocalyptic number.

135657543523502 is an abundant number, since it is smaller than the sum of its proper divisors (148394385344338).

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

135657543523502 is a wasteful number, since it uses less digits than its factorization.

135657543523502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31927 (or 31920 counting only the distinct ones).

The product of its (nonzero) digits is 56700000, while the sum is 56.

The spelling of 135657543523502 in words is "one hundred thirty-five trillion, six hundred fifty-seven billion, five hundred forty-three million, five hundred twenty-three thousand, five hundred two".