26220660220 has 48 divisors (see below), whose sum is σ = 55363226688. Its totient is φ = 10431267840.

The previous prime is 26220660217. The next prime is 26220660223. The reversal of 26220660220 is 2206602262.

It is an interprime number because it is at equal distance from previous prime (26220660217) and next prime (26220660223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26220660223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4272274 + ... + 4278406.

It is an arithmetic number, because the mean of its divisors is an integer number (1153400556).

Almost surely, 2^26220660220 is an apocalyptic number.

26220660220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26220660220 is an abundant number, since it is smaller than the sum of its proper divisors (29142566468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26220660220 is a wasteful number, since it uses less digits than its factorization.

26220660220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7270 (or 7268 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 26220660220 in words is "twenty-six billion, two hundred twenty million, six hundred sixty thousand, two hundred twenty".