20215456106033 has 4 divisors (see below), whose sum is σ = 20249092472868. Its totient is φ = 20181819739200.

The previous prime is 20215456106003. The next prime is 20215456106051. The reversal of 20215456106033 is 33060165451202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14953905552784 + 5261550553249 = 3867028^2 + 2293807^2 .

It is a cyclic number.

It is not a de Polignac number, because 20215456106033 - 2¹⁸ = 20215455843889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20215456106003) 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, 16818182516 + ... + 16818183717.

It is an arithmetic number, because the mean of its divisors is an integer number (5062273118217).

Almost surely, 2^{20215456106033} is an apocalyptic number.

It is an amenable number.

20215456106033 is a deficient number, since it is larger than the sum of its proper divisors (33636366835).

20215456106033 is an equidigital number, since it uses as much as digits as its factorization.

20215456106033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33636366834.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 20215456106033 in words is "twenty trillion, two hundred fifteen billion, four hundred fifty-six million, one hundred six thousand, thirty-three".