26660441400 has 48 divisors (see below), whose sum is σ = 82647370200. Its totient is φ = 7109450880.

The previous prime is 26660441389. The next prime is 26660441417. The reversal of 26660441400 is 414406662.

It is a congruent number.

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, 22216435 + ... + 22217634.

Almost surely, 2^26660441400 is an apocalyptic number.

26660441400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26660441400 is an abundant number, since it is smaller than the sum of its proper divisors (55986928800).

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

26660441400 is a wasteful number, since it uses less digits than its factorization.

26660441400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44434088 (or 44434079 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 26660441400 in words is "twenty-six billion, six hundred sixty million, four hundred forty-one thousand, four hundred".