136168167601 has 4 divisors (see below), whose sum is σ = 136290073972. Its totient is φ = 136046261232.

The previous prime is 136168167581. The next prime is 136168167731. The reversal of 136168167601 is 106761861631.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4224870001 + 131943297600 = 64999^2 + 363240^2 .

It is a cyclic number.

It is not a de Polignac number, because 136168167601 - 2¹³ = 136168159409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136168162601) 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, 60951510 + ... + 60953743.

It is an arithmetic number, because the mean of its divisors is an integer number (34072518493).

Almost surely, 2^136168167601 is an apocalyptic number.

It is an amenable number.

136168167601 is a deficient number, since it is larger than the sum of its proper divisors (121906371).

136168167601 is a wasteful number, since it uses less digits than its factorization.

136168167601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121906370.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 136168167601 in words is "one hundred thirty-six billion, one hundred sixty-eight million, one hundred sixty-seven thousand, six hundred one".