220626020845 has 4 divisors (see below), whose sum is σ = 264751225020. Its totient is φ = 176500816672.

The previous prime is 220626020837. The next prime is 220626020851. The reversal of 220626020845 is 548020626022.

It is a happy number.

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 84449522404 + 136176498441 = 290602^2 + 369021^2 .

It is a cyclic number.

It is not a de Polignac number, because 220626020845 - 2³ = 220626020837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22062602080 + ... + 22062602089.

It is an arithmetic number, because the mean of its divisors is an integer number (66187806255).

Almost surely, 2^220626020845 is an apocalyptic number.

It is an amenable number.

220626020845 is a deficient number, since it is larger than the sum of its proper divisors (44125204175).

220626020845 is an equidigital number, since it uses as much as digits as its factorization.

220626020845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44125204174.

The product of its (nonzero) digits is 92160, while the sum is 37.

Adding to 220626020845 its reverse (548020626022), we get a palindrome (768646646867).

It can be divided in two parts, 2206260 and 20845, that added together give a triangular number (2227105 = T₂₁₁₀).

The spelling of 220626020845 in words is "two hundred twenty billion, six hundred twenty-six million, twenty thousand, eight hundred forty-five".