136166661111 has 16 divisors (see below), whose sum is σ = 195865014240. Its totient is φ = 83647587840.

The previous prime is 136166661089. The next prime is 136166661133. The reversal of 136166661111 is 111166661631.

It is an interprime number because it is at equal distance from previous prime (136166661089) and next prime (136166661133).

It is not a de Polignac number, because 136166661111 - 2⁷ = 136166660983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 136166661111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136166661151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3045870 + ... + 3090251.

It is an arithmetic number, because the mean of its divisors is an integer number (12241563390).

Almost surely, 2^136166661111 is an apocalyptic number.

136166661111 is a deficient number, since it is larger than the sum of its proper divisors (59698353129).

136166661111 is a wasteful number, since it uses less digits than its factorization.

136166661111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6136706.

The product of its digits is 23328, while the sum is 39.

The spelling of 136166661111 in words is "one hundred thirty-six billion, one hundred sixty-six million, six hundred sixty-one thousand, one hundred eleven".