135320788656 has 120 divisors (see below), whose sum is σ = 379897318944. Its totient is φ = 44965831680.

The previous prime is 135320788643. The next prime is 135320788663. The reversal of 135320788656 is 656887023531.

135320788656 is a `hidden beast` number, since 1 + 353 + 207 + 8 + 86 + 5 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105967090 + ... + 105968366.

Almost surely, 2^135320788656 is an apocalyptic number.

135320788656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

135320788656 is an abundant number, since it is smaller than the sum of its proper divisors (244576530288).

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

135320788656 is a wasteful number, since it uses less digits than its factorization.

135320788656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3019 (or 3010 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 135320788656 in words is "one hundred thirty-five billion, three hundred twenty million, seven hundred eighty-eight thousand, six hundred fifty-six".