40552404121065 has 32 divisors (see below), whose sum is σ = 64996755264000. Its totient is φ = 21590318131200.

The previous prime is 40552404120953. The next prime is 40552404121081. The reversal of 40552404121065 is 56012140425504.

It is not a de Polignac number, because 40552404121065 - 2¹⁶ = 40552404055529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123151761 + ... + 123480609.

It is an arithmetic number, because the mean of its divisors is an integer number (2031148602000).

Almost surely, 2^{40552404121065} is an apocalyptic number.

It is an amenable number.

40552404121065 is a deficient number, since it is larger than the sum of its proper divisors (24444351142935).

40552404121065 is a wasteful number, since it uses less digits than its factorization.

40552404121065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343137.

The product of its (nonzero) digits is 192000, while the sum is 39.

Adding to 40552404121065 its reverse (56012140425504), we get a palindrome (96564544546569).

The spelling of 40552404121065 in words is "forty trillion, five hundred fifty-two billion, four hundred four million, one hundred twenty-one thousand, sixty-five".