40195181601 has 12 divisors (see below), whose sum is σ = 58334874000. Its totient is φ = 26669787480.

The previous prime is 40195181581. The next prime is 40195181617. The reversal of 40195181601 is 10618159104.

It is a happy number.

40195181601 is a `hidden beast` number, since 40 + 1 + 9 + 5 + 1 + 8 + 1 + 601 = 666.

It is not a de Polignac number, because 40195181601 - 2¹⁰ = 40195180577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40195181641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10581351 + ... + 10585148.

It is an arithmetic number, because the mean of its divisors is an integer number (4861239500).

Almost surely, 2^40195181601 is an apocalyptic number.

It is an amenable number.

40195181601 is a deficient number, since it is larger than the sum of its proper divisors (18139692399).

40195181601 is a wasteful number, since it uses less digits than its factorization.

40195181601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21166716 (or 21166713 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The spelling of 40195181601 in words is "forty billion, one hundred ninety-five million, one hundred eighty-one thousand, six hundred one".