26660064 has 48 divisors (see below), whose sum is σ = 70277760. Its totient is φ = 8849280.

The previous prime is 26660041. The next prime is 26660069. The reversal of 26660064 is 46006662.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26660069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31357 + ... + 32195.

It is an arithmetic number, because the mean of its divisors is an integer number (1464120).

Almost surely, 2^26660064 is an apocalyptic number.

26660064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

26660064 is an abundant number, since it is smaller than the sum of its proper divisors (43617696).

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

26660064 is a wasteful number, since it uses less digits than its factorization.

26660064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183 (or 1175 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 26660064 is about 5163.3384549146. The cubic root of 26660064 is about 298.7356567170.

The spelling of 26660064 in words is "twenty-six million, six hundred sixty thousand, sixty-four".