135625340520 has 160 divisors (see below), whose sum is σ = 471571194600. Its totient is φ = 34919603712.

The previous prime is 135625340507. The next prime is 135625340531. The reversal of 135625340520 is 25043526531.

135625340520 is a `hidden beast` number, since 1 + 3 + 5 + 625 + 3 + 4 + 0 + 5 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 113578436196 + 22046904324 = 337014^2 + 148482^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 627759 + ... + 815678.

Almost surely, 2^135625340520 is an apocalyptic number.

135625340520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135625340520 is an abundant number, since it is smaller than the sum of its proper divisors (335945854080).

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

135625340520 is a wasteful number, since it uses less digits than its factorization.

135625340520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443489 (or 1443476 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 135625340520 in words is "one hundred thirty-five billion, six hundred twenty-five million, three hundred forty thousand, five hundred twenty".