134223407520 has 96 divisors (see below), whose sum is σ = 447674568768. Its totient is φ = 33687441408.

The previous prime is 134223407501. The next prime is 134223407533. The reversal of 134223407520 is 25704322431.

It is a tau number, because it is divible by the number of its divisors (96).

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, 8216314 + ... + 8232633.

It is an arithmetic number, because the mean of its divisors is an integer number (4663276758).

Almost surely, 2^134223407520 is an apocalyptic number.

134223407520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134223407520 is an abundant number, since it is smaller than the sum of its proper divisors (313451161248).

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

134223407520 is a wasteful number, since it uses less digits than its factorization.

134223407520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16448982 (or 16448974 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 33.

Adding to 134223407520 its reverse (25704322431), we get a palindrome (159927729951).

The spelling of 134223407520 in words is "one hundred thirty-four billion, two hundred twenty-three million, four hundred seven thousand, five hundred twenty".