136664060443 has 4 divisors (see below), whose sum is σ = 144703122840. Its totient is φ = 128624998048.

The previous prime is 136664060437. The next prime is 136664060471. The reversal of 136664060443 is 344060466631.

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

It is a cyclic number.

It is not a de Polignac number, because 136664060443 - 2⁵ = 136664060411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136664060443.

It is not an unprimeable number, because it can be changed into a prime (136664060483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4019531173 + ... + 4019531206.

It is an arithmetic number, because the mean of its divisors is an integer number (36175780710).

Almost surely, 2^136664060443 is an apocalyptic number.

136664060443 is a deficient number, since it is larger than the sum of its proper divisors (8039062397).

136664060443 is an equidigital number, since it uses as much as digits as its factorization.

136664060443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8039062396.

The product of its (nonzero) digits is 746496, while the sum is 43.

The spelling of 136664060443 in words is "one hundred thirty-six billion, six hundred sixty-four million, sixty thousand, four hundred forty-three".