40661175616 has 28 divisors (see below), whose sum is σ = 83469335220. Its totient is φ = 19629532160.

The previous prime is 40661175613. The next prime is 40661175617. The reversal of 40661175616 is 61657116604.

It can be written as a sum of positive squares in 2 ways, for example, as 6619449600 + 34041726016 = 81360^2 + 184504^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40661175613) 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, 10952125 + ... + 10955836.

Almost surely, 2^40661175616 is an apocalyptic number.

It is an amenable number.

40661175616 is an abundant number, since it is smaller than the sum of its proper divisors (42808159604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40661175616 is a wasteful number, since it uses less digits than its factorization.

40661175616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21908002 (or 21907992 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 40661175616 in words is "forty billion, six hundred sixty-one million, one hundred seventy-five thousand, six hundred sixteen".