135562717420 has 24 divisors (see below), whose sum is σ = 306580299984. Its totient is φ = 50053926336.

The previous prime is 135562717417. The next prime is 135562717421. The reversal of 135562717420 is 24717265531.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (135562717421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260697274 + ... + 260697793.

It is an arithmetic number, because the mean of its divisors is an integer number (12774179166).

Almost surely, 2^135562717420 is an apocalyptic number.

135562717420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135562717420 is an abundant number, since it is smaller than the sum of its proper divisors (171017582564).

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

135562717420 is a wasteful number, since it uses less digits than its factorization.

135562717420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521395089 (or 521395087 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 135562717420 in words is "one hundred thirty-five billion, five hundred sixty-two million, seven hundred seventeen thousand, four hundred twenty".