26662020216 has 64 divisors (see below), whose sum is σ = 73533186720. Its totient is φ = 8003604480.

The previous prime is 26662020211. The next prime is 26662020223. The reversal of 26662020216 is 61202026662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26662020211) 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, 1029345 + ... + 1054928.

Almost surely, 2^26662020216 is an apocalyptic number.

26662020216 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

26662020216 is an abundant number, since it is smaller than the sum of its proper divisors (46871166504).

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

26662020216 is a wasteful number, since it uses less digits than its factorization.

26662020216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084336 (or 2084332 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 26662020216 its reverse (61202026662), we get a palindrome (87864046878).

The spelling of 26662020216 in words is "twenty-six billion, six hundred sixty-two million, twenty thousand, two hundred sixteen".