1040126336665 has 32 divisors (see below), whose sum is σ = 1346146615296. Its totient is φ = 766960911360.

The previous prime is 1040126336647. The next prime is 1040126336671. The reversal of 1040126336665 is 5666336210401.

It is not a de Polignac number, because 1040126336665 - 2⁹ = 1040126336153 is a prime.

It is a Duffinian number.

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, 150499560 + ... + 150506470.

It is an arithmetic number, because the mean of its divisors is an integer number (42067081728).

Almost surely, 2^{1040126336665} is an apocalyptic number.

It is an amenable number.

1040126336665 is a deficient number, since it is larger than the sum of its proper divisors (306020278631).

1040126336665 is a wasteful number, since it uses less digits than its factorization.

1040126336665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10009.

The product of its (nonzero) digits is 466560, while the sum is 43.

It can be divided in two parts, 1040126336 and 665, that added together give a square (1040127001 = 32251²).

The spelling of 1040126336665 in words is "one trillion, forty billion, one hundred twenty-six million, three hundred thirty-six thousand, six hundred sixty-five".