40066306769 has 4 divisors (see below), whose sum is σ = 40312112496. Its totient is φ = 39820501044.

The previous prime is 40066306759. The next prime is 40066306783. The reversal of 40066306769 is 96760366004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40066306769 - 2¹⁶ = 40066241233 is a prime.

It is a super-2 number, since 2×40066306769² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40066306759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122902619 + ... + 122902944.

It is an arithmetic number, because the mean of its divisors is an integer number (10078028124).

Almost surely, 2^40066306769 is an apocalyptic number.

It is an amenable number.

40066306769 is a deficient number, since it is larger than the sum of its proper divisors (245805727).

40066306769 is a wasteful number, since it uses less digits than its factorization.

40066306769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245805726.

The product of its (nonzero) digits is 979776, while the sum is 47.

The spelling of 40066306769 in words is "forty billion, sixty-six million, three hundred six thousand, seven hundred sixty-nine".