40755446665 has 4 divisors (see below), whose sum is σ = 48906536004. Its totient is φ = 32604357328.

The previous prime is 40755446659. The next prime is 40755446687. The reversal of 40755446665 is 56664455704.

It is a happy number.

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 25870470649 + 14884976016 = 160843^2 + 122004^2 .

It is a cyclic number.

It is not a de Polignac number, because 40755446665 - 2¹¹ = 40755444617 is a prime.

It is a super-2 number, since 2×40755446665² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4075544662 + ... + 4075544671.

It is an arithmetic number, because the mean of its divisors is an integer number (12226634001).

Almost surely, 2^40755446665 is an apocalyptic number.

It is an amenable number.

40755446665 is a deficient number, since it is larger than the sum of its proper divisors (8151089339).

40755446665 is an equidigital number, since it uses as much as digits as its factorization.

40755446665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8151089338.

The product of its (nonzero) digits is 12096000, while the sum is 52.

The spelling of 40755446665 in words is "forty billion, seven hundred fifty-five million, four hundred forty-six thousand, six hundred sixty-five".