40163653061 has 6 divisors (see below), whose sum is σ = 46720984230. Its totient is φ = 34425988296.

The previous prime is 40163653051. The next prime is 40163653081. The reversal of 40163653061 is 16035636104.

It can be written as a sum of positive squares in only one way, i.e., 28618150561 + 11545502500 = 169169^2 + 107450^2 .

It is a de Polignac number, because none of the positive numbers 2^k-40163653061 is a prime.

It is a super-2 number, since 2×40163653061² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40163653051) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 409833146 + ... + 409833243.

It is an arithmetic number, because the mean of its divisors is an integer number (7786830705).

Almost surely, 2^40163653061 is an apocalyptic number.

It is an amenable number.

40163653061 is a deficient number, since it is larger than the sum of its proper divisors (6557331169).

40163653061 is an equidigital number, since it uses as much as digits as its factorization.

40163653061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819666403 (or 819666396 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 40163653061 in words is "forty billion, one hundred sixty-three million, six hundred fifty-three thousand, sixty-one".