26663562016 has 96 divisors (see below), whose sum is σ = 64995920640. Its totient is φ = 10484868096.

The previous prime is 26663561983. The next prime is 26663562041. The reversal of 26663562016 is 61026536662.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458890 + ... + 513718.

It is an arithmetic number, because the mean of its divisors is an integer number (677040840).

Almost surely, 2^26663562016 is an apocalyptic number.

26663562016 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26663562016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32497960320).

26663562016 is an abundant number, since it is smaller than the sum of its proper divisors (38332358624).

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

26663562016 is a wasteful number, since it uses less digits than its factorization.

26663562016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55026 (or 55018 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 26663562016 in words is "twenty-six billion, six hundred sixty-three million, five hundred sixty-two thousand, sixteen".