20106552263 has 4 divisors (see below), whose sum is σ = 22978916880. Its totient is φ = 17234187648.

The previous prime is 20106552253. The next prime is 20106552269. The reversal of 20106552263 is 36225560102.

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

It is a cyclic number.

It is not a de Polignac number, because 20106552263 - 2⁶ = 20106552199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20106552269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1436182298 + ... + 1436182311.

It is an arithmetic number, because the mean of its divisors is an integer number (5744729220).

Almost surely, 2^20106552263 is an apocalyptic number.

20106552263 is a deficient number, since it is larger than the sum of its proper divisors (2872364617).

20106552263 is an equidigital number, since it uses as much as digits as its factorization.

20106552263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2872364616.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 20106552263 in words is "twenty billion, one hundred six million, five hundred fifty-two thousand, two hundred sixty-three".