135620554553 has 8 divisors (see below), whose sum is σ = 150457318560. Its totient is φ = 121201727680.

The previous prime is 135620554529. The next prime is 135620554571. The reversal of 135620554553 is 355455026531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135620554553 - 2¹⁰ = 135620553529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135620554453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104483600 + ... + 104484897.

It is an arithmetic number, because the mean of its divisors is an integer number (18807164820).

Almost surely, 2^135620554553 is an apocalyptic number.

It is an amenable number.

135620554553 is a deficient number, since it is larger than the sum of its proper divisors (14836764007).

135620554553 is a wasteful number, since it uses less digits than its factorization.

135620554553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208968567.

The product of its (nonzero) digits is 1350000, while the sum is 44.

The spelling of 135620554553 in words is "one hundred thirty-five billion, six hundred twenty million, five hundred fifty-four thousand, five hundred fifty-three".