135085698256 has 20 divisors (see below), whose sum is σ = 262182160612. Its totient is φ = 67425785856.

The previous prime is 135085698203. The next prime is 135085698257. The reversal of 135085698256 is 652896580531.

It can be written as a sum of positive squares in 2 ways, for example, as 134163968656 + 921729600 = 366284^2 + 30360^2 .

It is a super-2 number, since 2×135085698256² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135085698256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135085698257) 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, 7306935 + ... + 7325398.

Almost surely, 2^135085698256 is an apocalyptic number.

135085698256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

135085698256 is a deficient number, since it is larger than the sum of its proper divisors (127096462356).

135085698256 is a wasteful number, since it uses less digits than its factorization.

135085698256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14632918 (or 14632912 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 58.

The spelling of 135085698256 in words is "one hundred thirty-five billion, eighty-five million, six hundred ninety-eight thousand, two hundred fifty-six".