36380121266 has 4 divisors (see below), whose sum is σ = 54570181902. Its totient is φ = 18190060632.

The previous prime is 36380121263. The next prime is 36380121293. The reversal of 36380121266 is 66212108363.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66212108363 = 337 ⋅196475099.

It can be written as a sum of positive squares in only one way, i.e., 33061785241 + 3318336025 = 181829^2 + 57605^2 .

It is not an unprimeable number, because it can be changed into a prime (36380121263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9095030315 + ... + 9095030318.

Almost surely, 2^36380121266 is an apocalyptic number.

36380121266 is a deficient number, since it is larger than the sum of its proper divisors (18190060636).

36380121266 is a wasteful number, since it uses less digits than its factorization.

36380121266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18190060635.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 36380121266 in words is "thirty-six billion, three hundred eighty million, one hundred twenty-one thousand, two hundred sixty-six".