40161108352641 has 16 divisors (see below), whose sum is σ = 55876763080320. Its totient is φ = 25609781197440.

The previous prime is 40161108352543. The next prime is 40161108352691. The reversal of 40161108352641 is 14625380116104.

It is not a de Polignac number, because 40161108352641 - 2⁷ = 40161108352513 is a prime.

It is a super-2 number, since 2×40161108352641² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40161108352593 and 40161108352602.

It is not an unprimeable number, because it can be changed into a prime (40161108352691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6836445 + ... + 11272053.

It is an arithmetic number, because the mean of its divisors is an integer number (3492297692520).

Almost surely, 2^{40161108352641} is an apocalyptic number.

It is an amenable number.

40161108352641 is a deficient number, since it is larger than the sum of its proper divisors (15715654727679).

40161108352641 is a wasteful number, since it uses less digits than its factorization.

40161108352641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4566856.

The product of its (nonzero) digits is 138240, while the sum is 42.

Adding to 40161108352641 its reverse (14625380116104), we get a palindrome (54786488468745).

The spelling of 40161108352641 in words is "forty trillion, one hundred sixty-one billion, one hundred eight million, three hundred fifty-two thousand, six hundred forty-one".