136168536243 has 32 divisors (see below), whose sum is σ = 196914147840. Its totient is φ = 83440304640.

The previous prime is 136168536167. The next prime is 136168536247. The reversal of 136168536243 is 342635861631.

It is not a de Polignac number, because 136168536243 - 2⁹ = 136168535731 is a prime.

It is a super-2 number, since 2×136168536243² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 136168536192 and 136168536201.

It is not an unprimeable number, because it can be changed into a prime (136168536247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260955 + ... + 583467.

It is an arithmetic number, because the mean of its divisors is an integer number (6153567120).

Almost surely, 2^136168536243 is an apocalyptic number.

136168536243 is a deficient number, since it is larger than the sum of its proper divisors (60745611597).

136168536243 is a wasteful number, since it uses less digits than its factorization.

136168536243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322779.

The product of its digits is 1866240, while the sum is 48.

The spelling of 136168536243 in words is "one hundred thirty-six billion, one hundred sixty-eight million, five hundred thirty-six thousand, two hundred forty-three".