26660243401 has 8 divisors (see below), whose sum is σ = 29350728000. Its totient is φ = 24014229840.

The previous prime is 26660243287. The next prime is 26660243411. The reversal of 26660243401 is 10434206662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26660243401 - 2¹⁷ = 26660112329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26660243411) 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, 11116501 + ... + 11118898.

It is an arithmetic number, because the mean of its divisors is an integer number (3668841000).

Almost surely, 2^26660243401 is an apocalyptic number.

It is an amenable number.

26660243401 is a deficient number, since it is larger than the sum of its proper divisors (2690484599).

26660243401 is a wasteful number, since it uses less digits than its factorization.

26660243401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22235519.

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 26660243401 in words is "twenty-six billion, six hundred sixty million, two hundred forty-three thousand, four hundred one".