134635656520 has 64 divisors (see below), whose sum is σ = 308184912000. Its totient is φ = 52920811008.

The previous prime is 134635656511. The next prime is 134635656521. The reversal of 134635656520 is 25656536431.

It is not an unprimeable number, because it can be changed into a prime (134635656521) 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, 6959421 + ... + 6978739.

It is an arithmetic number, because the mean of its divisors is an integer number (4815389250).

Almost surely, 2^134635656520 is an apocalyptic number.

134635656520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134635656520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154092456000).

134635656520 is an abundant number, since it is smaller than the sum of its proper divisors (173549255480).

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

134635656520 is a wasteful number, since it uses less digits than its factorization.

134635656520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22342 (or 22338 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 46.

The spelling of 134635656520 in words is "one hundred thirty-four billion, six hundred thirty-five million, six hundred fifty-six thousand, five hundred twenty".