26260624400660 has 24 divisors (see below), whose sum is σ = 59389412106696. Its totient is φ = 9696230547840.

The previous prime is 26260624400641. The next prime is 26260624400671. The reversal of 26260624400660 is 6600442606262.

It can be written as a sum of positive squares in 4 ways, for example, as 1433105871376 + 24827518529284 = 1197124^2 + 4982722^2 .

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 7 ways as a sum of consecutive naturals, for example, 50501200511 + ... + 50501201030.

It is an arithmetic number, because the mean of its divisors is an integer number (2474558837779).

Almost surely, 2^{26260624400660} is an apocalyptic number.

26260624400660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26260624400660 is an abundant number, since it is smaller than the sum of its proper divisors (33128787706036).

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

26260624400660 is a wasteful number, since it uses less digits than its factorization.

26260624400660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101002401563 (or 101002401561 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 44.

The spelling of 26260624400660 in words is "twenty-six trillion, two hundred sixty billion, six hundred twenty-four million, four hundred thousand, six hundred sixty".