36661271266 has 8 divisors (see below), whose sum is σ = 55165383900. Its totient is φ = 18272809968.

The previous prime is 36661271263. The next prime is 36661271281. The reversal of 36661271266 is 66217216663.

It can be written as a sum of positive squares in 2 ways, for example, as 25144762041 + 11516509225 = 158571^2 + 107315^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (36661271263) 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, 28912041 + ... + 28913308.

Almost surely, 2^36661271266 is an apocalyptic number.

36661271266 is a deficient number, since it is larger than the sum of its proper divisors (18504112634).

36661271266 is a wasteful number, since it uses less digits than its factorization.

36661271266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57825668.

The product of its digits is 653184, while the sum is 46.

The spelling of 36661271266 in words is "thirty-six billion, six hundred sixty-one million, two hundred seventy-one thousand, two hundred sixty-six".