134223654320 has 80 divisors (see below), whose sum is σ = 357168592128. Its totient is φ = 45952807680.

The previous prime is 134223654281. The next prime is 134223654353. The reversal of 134223654320 is 23456322431.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213527 + ... + 560393.

Almost surely, 2^134223654320 is an apocalyptic number.

134223654320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134223654320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178584296064).

134223654320 is an abundant number, since it is smaller than the sum of its proper divisors (222944937808).

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

134223654320 is a wasteful number, since it uses less digits than its factorization.

134223654320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347578 (or 347572 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 134223654320 its reverse (23456322431), we get a palindrome (157679976751).

The spelling of 134223654320 in words is "one hundred thirty-four billion, two hundred twenty-three million, six hundred fifty-four thousand, three hundred twenty".