134455555691 has 4 divisors (see below), whose sum is σ = 136349295984. Its totient is φ = 132561815400.

The previous prime is 134455555651. The next prime is 134455555697. The reversal of 134455555691 is 196555554431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134455555691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134455555697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946870040 + ... + 946870181.

It is an arithmetic number, because the mean of its divisors is an integer number (34087323996).

Almost surely, 2^134455555691 is an apocalyptic number.

134455555691 is a deficient number, since it is larger than the sum of its proper divisors (1893740293).

134455555691 is an equidigital number, since it uses as much as digits as its factorization.

134455555691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893740292.

The product of its digits is 8100000, while the sum is 53.

The spelling of 134455555691 in words is "one hundred thirty-four billion, four hundred fifty-five million, five hundred fifty-five thousand, six hundred ninety-one".