26666242040 has 16 divisors (see below), whose sum is σ = 59999044680. Its totient is φ = 10666496800.

The previous prime is 26666242039. The next prime is 26666242061. The reversal of 26666242040 is 4024266662.

It is a happy number.

It is a super-2 number, since 2×26666242040² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26666241985 and 26666242003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333327986 + ... + 333328065.

Almost surely, 2^26666242040 is an apocalyptic number.

26666242040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26666242040 is an abundant number, since it is smaller than the sum of its proper divisors (33332802640).

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

26666242040 is a wasteful number, since it uses less digits than its factorization.

26666242040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666656062 (or 666656058 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 26666242040 in words is "twenty-six billion, six hundred sixty-six million, two hundred forty-two thousand, forty".