36667646161 has 4 divisors (see below), whose sum is σ = 36668851252. Its totient is φ = 36666441072.

The previous prime is 36667646143. The next prime is 36667646189. The reversal of 36667646161 is 16164676663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16164676663 = 1327 ⋅12181369.

It can be written as a sum of positive squares in 2 ways, for example, as 33760387600 + 2907258561 = 183740^2 + 53919^2 .

It is a cyclic number.

It is not a de Polignac number, because 36667646161 - 2⁵ = 36667646129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36667646099 and 36667646108.

It is not an unprimeable number, because it can be changed into a prime (36667646111) 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, 555690 + ... + 618163.

It is an arithmetic number, because the mean of its divisors is an integer number (9167212813).

Almost surely, 2^36667646161 is an apocalyptic number.

It is an amenable number.

36667646161 is a deficient number, since it is larger than the sum of its proper divisors (1205091).

36667646161 is a wasteful number, since it uses less digits than its factorization.

36667646161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205090.

The product of its digits is 3919104, while the sum is 52.

The spelling of 36667646161 in words is "thirty-six billion, six hundred sixty-seven million, six hundred forty-six thousand, one hundred sixty-one".