26663168016 has 60 divisors (see below), whose sum is σ = 79009247772. Its totient is φ = 8364914688.

The previous prime is 26663167991. The next prime is 26663168057. The reversal of 26663168016 is 61086136662.

It can be written as a sum of positive squares in 2 ways, for example, as 8968847616 + 17694320400 = 94704^2 + 133020^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5443461 + ... + 5448356.

Almost surely, 2^26663168016 is an apocalyptic number.

It is an amenable number.

26663168016 is an abundant number, since it is smaller than the sum of its proper divisors (52346079756).

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

26663168016 is a wasteful number, since it uses less digits than its factorization.

26663168016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10891848 (or 10891839 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 26663168016 in words is "twenty-six billion, six hundred sixty-three million, one hundred sixty-eight thousand, sixteen".