40366565673 has 16 divisors (see below), whose sum is σ = 61514207616. Its totient is φ = 23065390080.

The previous prime is 40366565639. The next prime is 40366565683. The reversal of 40366565673 is 37656566304.

It is not a de Polignac number, because 40366565673 - 2⁶ = 40366565609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40366565683) 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, 490003 + ... + 566423.

It is an arithmetic number, because the mean of its divisors is an integer number (3844637976).

Almost surely, 2^40366565673 is an apocalyptic number.

It is an amenable number.

40366565673 is a deficient number, since it is larger than the sum of its proper divisors (21147641943).

40366565673 is a wasteful number, since it uses less digits than its factorization.

40366565673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101584.

The product of its (nonzero) digits is 8164800, while the sum is 51.

The spelling of 40366565673 in words is "forty billion, three hundred sixty-six million, five hundred sixty-five thousand, six hundred seventy-three".