135432205551 has 16 divisors (see below), whose sum is σ = 203929492320. Its totient is φ = 88808002560.

The previous prime is 135432205547. The next prime is 135432205609. The reversal of 135432205551 is 155502234531.

135432205551 is a `hidden beast` number, since 1 + 3 + 54 + 32 + 20 + 5 + 551 = 666.

It is not a de Polignac number, because 135432205551 - 2² = 135432205547 is a prime.

It is a super-3 number, since 3×135432205551³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135432206551) 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, 41113170 + ... + 41116463.

It is an arithmetic number, because the mean of its divisors is an integer number (12745593270).

Almost surely, 2^135432205551 is an apocalyptic number.

135432205551 is a deficient number, since it is larger than the sum of its proper divisors (68497286769).

135432205551 is an equidigital number, since it uses as much as digits as its factorization.

135432205551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82229703 (or 82229697 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 135432205551 in words is "one hundred thirty-five billion, four hundred thirty-two million, two hundred five thousand, five hundred fifty-one".