134542565640 has 96 divisors (see below), whose sum is σ = 499729538880. Its totient is φ = 30752585856.

The previous prime is 134542565617. The next prime is 134542565659. The reversal of 134542565640 is 46565245431.

134542565640 is a `hidden beast` number, since 1 + 3 + 4 + 5 + 42 + 565 + 6 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26692434 + ... + 26697473.

It is an arithmetic number, because the mean of its divisors is an integer number (5205516030).

Almost surely, 2^134542565640 is an apocalyptic number.

134542565640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134542565640 is an abundant number, since it is smaller than the sum of its proper divisors (365186973240).

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

134542565640 is a wasteful number, since it uses less digits than its factorization.

134542565640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53389931 (or 53389924 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 45.

The spelling of 134542565640 in words is "one hundred thirty-four billion, five hundred forty-two million, five hundred sixty-five thousand, six hundred forty".