26660056320 has 108 divisors (see below), whose sum is σ = 92241057636. Its totient is φ = 7109345280.

The previous prime is 26660056307. The next prime is 26660056333. The reversal of 26660056320 is 2365006662.

It is an interprime number because it is at equal distance from previous prime (26660056307) and next prime (26660056333).

It can be written as a sum of positive squares in 2 ways, for example, as 2978539776 + 23681516544 = 54576^2 + 153888^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1145601 + ... + 1168640.

It is an arithmetic number, because the mean of its divisors is an integer number (854083867).

Almost surely, 2^26660056320 is an apocalyptic number.

26660056320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26660056320 is an abundant number, since it is smaller than the sum of its proper divisors (65581001316).

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

26660056320 is a wasteful number, since it uses less digits than its factorization.

26660056320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314268 (or 2314251 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 26660056320 in words is "twenty-six billion, six hundred sixty million, fifty-six thousand, three hundred twenty".