26612525551216 has 80 divisors (see below), whose sum is σ = 56923360528896. Its totient is φ = 12051963000000.

The previous prime is 26612525551207. The next prime is 26612525551319. The reversal of 26612525551216 is 61215552521662.

It is a self number, because there is not a number n which added to its sum of digits gives 26612525551216.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3465591 + ... + 8076841.

Almost surely, 2^{26612525551216} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26612525551216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28461680264448).

26612525551216 is an abundant number, since it is smaller than the sum of its proper divisors (30310834977680).

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

26612525551216 is a wasteful number, since it uses less digits than its factorization.

26612525551216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4611563 (or 4611535 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 49.

The spelling of 26612525551216 in words is "twenty-six trillion, six hundred twelve billion, five hundred twenty-five million, five hundred fifty-one thousand, two hundred sixteen".