134400553520 has 40 divisors (see below), whose sum is σ = 312709132656. Its totient is φ = 53721022208.

The previous prime is 134400553519. The next prime is 134400553597. The reversal of 134400553520 is 25355004431.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501962 + ... + 721641.

Almost surely, 2^134400553520 is an apocalyptic number.

134400553520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134400553520 is an abundant number, since it is smaller than the sum of its proper divisors (178308579136).

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

134400553520 is a wasteful number, since it uses less digits than its factorization.

134400553520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224989 (or 1224983 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 134400553520 its reverse (25355004431), we get a palindrome (159755557951).

The spelling of 134400553520 in words is "one hundred thirty-four billion, four hundred million, five hundred fifty-three thousand, five hundred twenty".