40144453100665 has 16 divisors (see below), whose sum is σ = 48219336394560. Its totient is φ = 32084914760640.

The previous prime is 40144453100593. The next prime is 40144453100677. The reversal of 40144453100665 is 56600135444104.

It is not a de Polignac number, because 40144453100665 - 2¹³ = 40144453092473 is a prime.

It is a super-2 number, since 2×40144453100665² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22017706 + ... + 23771164.

It is an arithmetic number, because the mean of its divisors is an integer number (3013708524660).

Almost surely, 2^{40144453100665} is an apocalyptic number.

It is an amenable number.

40144453100665 is a deficient number, since it is larger than the sum of its proper divisors (8074883293895).

40144453100665 is a wasteful number, since it uses less digits than its factorization.

40144453100665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757832.

The product of its (nonzero) digits is 691200, while the sum is 43.

Adding to 40144453100665 its reverse (56600135444104), we get a palindrome (96744588544769).

The spelling of 40144453100665 in words is "forty trillion, one hundred forty-four billion, four hundred fifty-three million, one hundred thousand, six hundred sixty-five".