164136135511 has 4 divisors (see below), whose sum is σ = 164138245024. Its totient is φ = 164134026000.

The previous prime is 164136135509. The next prime is 164136135551. The reversal of 164136135511 is 115531631461.

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 164136135511 - 2¹ = 164136135509 is a prime.

It is a super-2 number, since 2×164136135511² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164136135551) 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, 933390 + ... + 1095211.

It is an arithmetic number, because the mean of its divisors is an integer number (41034561256).

Almost surely, 2^164136135511 is an apocalyptic number.

164136135511 is a deficient number, since it is larger than the sum of its proper divisors (2109513).

164136135511 is an equidigital number, since it uses as much as digits as its factorization.

164136135511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109512.

The product of its digits is 32400, while the sum is 37.

Adding to 164136135511 its reverse (115531631461), we get a palindrome (279667766972).

The spelling of 164136135511 in words is "one hundred sixty-four billion, one hundred thirty-six million, one hundred thirty-five thousand, five hundred eleven".