26664100043 has 16 divisors (see below), whose sum is σ = 31105636800. Its totient is φ = 22847243328.

The previous prime is 26664100037. The next prime is 26664100097. The reversal of 26664100043 is 34000146662.

It is not a de Polignac number, because 26664100043 - 2¹⁸ = 26663837899 is a prime.

It is a super-2 number, since 2×26664100043² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26664099982 and 26664100009.

It is not an unprimeable number, because it can be changed into a prime (26664190043) 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, 1159271 + ... + 1182047.

It is an arithmetic number, because the mean of its divisors is an integer number (1944102300).

Almost surely, 2^26664100043 is an apocalyptic number.

26664100043 is a deficient number, since it is larger than the sum of its proper divisors (4441536757).

26664100043 is an equidigital number, since it uses as much as digits as its factorization.

26664100043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26211 (or 26197 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 26664100043 in words is "twenty-six billion, six hundred sixty-four million, one hundred thousand, forty-three".