135771620580 has 96 divisors (see below), whose sum is σ = 436966185600. Its totient is φ = 34957286784.

The previous prime is 135771620503. The next prime is 135771620627. The reversal of 135771620580 is 85026177531.

It is a happy number.

135771620580 is a `hidden beast` number, since 1 + 3 + 5 + 7 + 7 + 1 + 62 + 0 + 580 = 666.

135771620580 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4319322 + ... + 4350641.

It is an arithmetic number, because the mean of its divisors is an integer number (4551731100).

Almost surely, 2^135771620580 is an apocalyptic number.

135771620580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135771620580 is an abundant number, since it is smaller than the sum of its proper divisors (301194565020).

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

135771620580 is a wasteful number, since it uses less digits than its factorization.

135771620580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8670010 (or 8670002 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The spelling of 135771620580 in words is "one hundred thirty-five billion, seven hundred seventy-one million, six hundred twenty thousand, five hundred eighty".