135134661320 has 64 divisors (see below), whose sum is σ = 313424743680. Its totient is φ = 52409276416.

The previous prime is 135134661301. The next prime is 135134661329. The reversal of 135134661320 is 23166431531.

It is a super-2 number, since 2×135134661320² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135134661329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134729 + ... + 537048.

It is an arithmetic number, because the mean of its divisors is an integer number (4897261620).

Almost surely, 2^135134661320 is an apocalyptic number.

135134661320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135134661320 is an abundant number, since it is smaller than the sum of its proper divisors (178290082360).

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

135134661320 is a wasteful number, since it uses less digits than its factorization.

135134661320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671942 (or 671938 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 135134661320 in words is "one hundred thirty-five billion, one hundred thirty-four million, six hundred sixty-one thousand, three hundred twenty".