40271066514661 has 4 divisors (see below), whose sum is σ = 40420773081900. Its totient is φ = 40121359947424.

The previous prime is 40271066514649. The next prime is 40271066514689. The reversal of 40271066514661 is 16641566017204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9482051538436 + 30789014976225 = 3079294^2 + 5548785^2 .

It is a cyclic number.

It is not a de Polignac number, because 40271066514661 - 2²¹ = 40271064417509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40271066514611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74853283216 + ... + 74853283753.

It is an arithmetic number, because the mean of its divisors is an integer number (10105193270475).

Almost surely, 2^{40271066514661} is an apocalyptic number.

It is an amenable number.

40271066514661 is a deficient number, since it is larger than the sum of its proper divisors (149706567239).

40271066514661 is a wasteful number, since it uses less digits than its factorization.

40271066514661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149706567238.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 40271066514661 in words is "forty trillion, two hundred seventy-one billion, sixty-six million, five hundred fourteen thousand, six hundred sixty-one".