40116712465 has 4 divisors (see below), whose sum is σ = 48140054964. Its totient is φ = 32093369968.

The previous prime is 40116712463. The next prime is 40116712483. The reversal of 40116712465 is 56421761104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32042432016 + 8074280449 = 179004^2 + 89857^2 .

It is a cyclic number.

It is not a de Polignac number, because 40116712465 - 2¹ = 40116712463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40116712463) 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, 4011671242 + ... + 4011671251.

It is an arithmetic number, because the mean of its divisors is an integer number (12035013741).

Almost surely, 2^40116712465 is an apocalyptic number.

It is an amenable number.

40116712465 is a deficient number, since it is larger than the sum of its proper divisors (8023342499).

40116712465 is an equidigital number, since it uses as much as digits as its factorization.

40116712465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8023342498.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 40116712465 in words is "forty billion, one hundred sixteen million, seven hundred twelve thousand, four hundred sixty-five".