26620045666368 has 1008 divisors, whose sum is σ = 96397383462912. Its totient is φ = 6338650982400.

The previous prime is 26620045666303. The next prime is 26620045666373. The reversal of 26620045666368 is 86366654002662.

It is a happy number.

It is a super-2 number, since 2×26620045666368² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1819917871 + ... + 1819932497.

It is an arithmetic number, because the mean of its divisors is an integer number (95632324864).

Almost surely, 2^{26620045666368} is an apocalyptic number.

26620045666368 is a gapful number since it is divisible by the number (28) 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 26620045666368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48198691731456).

26620045666368 is an abundant number, since it is smaller than the sum of its proper divisors (69777337796544).

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

26620045666368 is a wasteful number, since it uses less digits than its factorization.

26620045666368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14740 (or 14700 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 60.

The spelling of 26620045666368 in words is "twenty-six trillion, six hundred twenty billion, forty-five million, six hundred sixty-six thousand, three hundred sixty-eight".