36166798081 has 4 divisors (see below), whose sum is σ = 36276063664. Its totient is φ = 36057532500.

The previous prime is 36166798021. The next prime is 36166798093. The reversal of 36166798081 is 18089766163.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 36166798081 - 2¹¹ = 36166796033 is a prime.

It is a super-2 number, since 2×36166798081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36166798021) 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, 54632295 + ... + 54632956.

It is an arithmetic number, because the mean of its divisors is an integer number (9069015916).

Almost surely, 2^36166798081 is an apocalyptic number.

It is an amenable number.

36166798081 is a deficient number, since it is larger than the sum of its proper divisors (109265583).

36166798081 is a wasteful number, since it uses less digits than its factorization.

36166798081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109265582.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 36166798081 in words is "thirty-six billion, one hundred sixty-six million, seven hundred ninety-eight thousand, eighty-one".