26223196660 has 48 divisors (see below), whose sum is σ = 58518757584. Its totient is φ = 9836587008.

The previous prime is 26223196619. The next prime is 26223196661. The reversal of 26223196660 is 6669132262.

It can be written as a sum of positive squares in 8 ways, for example, as 4695264484 + 21527932176 = 68522^2 + 146724^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26223196661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45039 + ... + 233398.

It is an arithmetic number, because the mean of its divisors is an integer number (1219140783).

Almost surely, 2^26223196660 is an apocalyptic number.

26223196660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26223196660 is an abundant number, since it is smaller than the sum of its proper divisors (32295560924).

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

26223196660 is a wasteful number, since it uses less digits than its factorization.

26223196660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278740 (or 278738 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 43.

The spelling of 26223196660 in words is "twenty-six billion, two hundred twenty-three million, one hundred ninety-six thousand, six hundred sixty".