40661109316 has 9 divisors (see below), whose sum is σ = 71157647071. Its totient is φ = 20330353012.

The previous prime is 40661109287. The next prime is 40661109323. The reversal of 40661109316 is 61390116604.

The square root of 40661109316 is 201646.

It is a perfect power (a square), and thus also a powerful number.

40661109316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 352881 + ... + 453703.

Almost surely, 2^40661109316 is an apocalyptic number.

40661109316 is the 201646-th square number.

It is an amenable number.

40661109316 is a deficient number, since it is larger than the sum of its proper divisors (30496537755).

40661109316 is an frugal number, since it uses more digits than its factorization.

40661109316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201650 (or 100825 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 40661109316 in words is "forty billion, six hundred sixty-one million, one hundred nine thousand, three hundred sixteen".