26665339932001 has 16 divisors (see below), whose sum is σ = 27542360969728. Its totient is φ = 25789376937600.

The previous prime is 26665339931987. The next prime is 26665339932019. The reversal of 26665339932001 is 10023993356662.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 26665339932001 - 2²⁵ = 26665306377569 is a prime.

It is a super-2 number, since 2×26665339932001² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26665339932031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348496390 + ... + 348572896.

It is an arithmetic number, because the mean of its divisors is an integer number (1721397560608).

Almost surely, 2^{26665339932001} is an apocalyptic number.

It is an amenable number.

26665339932001 is a deficient number, since it is larger than the sum of its proper divisors (877021037727).

26665339932001 is a wasteful number, since it uses less digits than its factorization.

26665339932001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83272.

The product of its (nonzero) digits is 9447840, while the sum is 55.

The spelling of 26665339932001 in words is "twenty-six trillion, six hundred sixty-five billion, three hundred thirty-nine million, nine hundred thirty-two thousand, one".