134365655436221 has 16 divisors (see below), whose sum is σ = 148042109066688. Its totient is φ = 120932932512000.

The previous prime is 134365655436167. The next prime is 134365655436227. The reversal of 134365655436221 is 122634556563431.

It is a cyclic number.

It is not a de Polignac number, because 134365655436221 - 2¹⁰ = 134365655435197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134365655436227) 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, 12194405 + ... + 20431221.

It is an arithmetic number, because the mean of its divisors is an integer number (9252631816668).

Almost surely, 2^{134365655436221} is an apocalyptic number.

134365655436221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

134365655436221 is a deficient number, since it is larger than the sum of its proper divisors (13676453630467).

134365655436221 is a wasteful number, since it uses less digits than its factorization.

134365655436221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8251612.

The product of its digits is 46656000, while the sum is 56.

The spelling of 134365655436221 in words is "one hundred thirty-four trillion, three hundred sixty-five billion, six hundred fifty-five million, four hundred thirty-six thousand, two hundred twenty-one".