36171920033 has 4 divisors (see below), whose sum is σ = 36241082928. Its totient is φ = 36102757140.

The previous prime is 36171920027. The next prime is 36171920041. The reversal of 36171920033 is 33002917163.

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 36171920033 - 2¹⁶ = 36171854497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36171919975 and 36171920002.

It is not an unprimeable number, because it can be changed into a prime (36171920063) 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, 34580663 + ... + 34581708.

It is an arithmetic number, because the mean of its divisors is an integer number (9060270732).

Almost surely, 2^36171920033 is an apocalyptic number.

It is an amenable number.

36171920033 is a deficient number, since it is larger than the sum of its proper divisors (69162895).

36171920033 is an equidigital number, since it uses as much as digits as its factorization.

36171920033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69162894.

The product of its (nonzero) digits is 20412, while the sum is 35.

The spelling of 36171920033 in words is "thirty-six billion, one hundred seventy-one million, nine hundred twenty thousand, thirty-three".