134564601520 has 20 divisors (see below), whose sum is σ = 312862698720. Its totient is φ = 53825840576.

The previous prime is 134564601511. The next prime is 134564601599. The reversal of 134564601520 is 25106465431.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 134564601520.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 841028680 + ... + 841028839.

It is an arithmetic number, because the mean of its divisors is an integer number (15643134936).

Almost surely, 2^134564601520 is an apocalyptic number.

134564601520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134564601520 is an abundant number, since it is smaller than the sum of its proper divisors (178298097200).

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

134564601520 is a wasteful number, since it uses less digits than its factorization.

134564601520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682057532 (or 1682057526 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 134564601520 in words is "one hundred thirty-four billion, five hundred sixty-four million, six hundred one thousand, five hundred twenty".