26660132643 has 8 divisors (see below), whose sum is σ = 35585110800. Its totient is φ = 17754288128.

The previous prime is 26660132633. The next prime is 26660132647. The reversal of 26660132643 is 34623106662.

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 26660132643 - 2²⁸ = 26391697187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26660132647) 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, 4780158 + ... + 4785731.

It is an arithmetic number, because the mean of its divisors is an integer number (4448138850).

Almost surely, 2^26660132643 is an apocalyptic number.

26660132643 is a deficient number, since it is larger than the sum of its proper divisors (8924978157).

26660132643 is an equidigital number, since it uses as much as digits as its factorization.

26660132643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9566821.

The product of its (nonzero) digits is 186624, while the sum is 39.

The spelling of 26660132643 in words is "twenty-six billion, six hundred sixty million, one hundred thirty-two thousand, six hundred forty-three".