40266026605 has 24 divisors (see below), whose sum is σ = 56216920320. Its totient is φ = 27606650400.

The previous prime is 40266026597. The next prime is 40266026623. The reversal of 40266026605 is 50662066204.

It is a happy number.

It is not a de Polignac number, because 40266026605 - 2³ = 40266026597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2773756 + ... + 2788234.

It is an arithmetic number, because the mean of its divisors is an integer number (2342371680).

Almost surely, 2^40266026605 is an apocalyptic number.

It is an amenable number.

40266026605 is a deficient number, since it is larger than the sum of its proper divisors (15950893715).

40266026605 is a wasteful number, since it uses less digits than its factorization.

40266026605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25849 (or 25842 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 40266026605 in words is "forty billion, two hundred sixty-six million, twenty-six thousand, six hundred five".