136164029578 has 4 divisors (see below), whose sum is σ = 204246044370. Its totient is φ = 68082014788.

The previous prime is 136164029557. The next prime is 136164029647. The reversal of 136164029578 is 875920461631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 875920461631 = 17783 ⋅49256057.

It can be written as a sum of positive squares in only one way, i.e., 74328752689 + 61835276889 = 272633^2 + 248667^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34041007393 + ... + 34041007396.

It is a 1-persistent number, because it is pandigital, but 2⋅136164029578 = 272328059156 is not.

Almost surely, 2^136164029578 is an apocalyptic number.

136164029578 is a deficient number, since it is larger than the sum of its proper divisors (68082014792).

136164029578 is an equidigital number, since it uses as much as digits as its factorization.

136164029578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68082014791.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 136164029578 in words is "one hundred thirty-six billion, one hundred sixty-four million, twenty-nine thousand, five hundred seventy-eight".