40035421161 has 12 divisors (see below), whose sum is σ = 57990029760. Its totient is φ = 26615932440.

The previous prime is 40035421121. The next prime is 40035421211. The reversal of 40035421161 is 16112453004.

It is a happy number.

40035421161 is a `hidden beast` number, since 4 + 0 + 0 + 3 + 542 + 116 + 1 = 666.

It is not a de Polignac number, because 40035421161 - 2¹⁴ = 40035404777 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40035421121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6192285 + ... + 6198746.

It is an arithmetic number, because the mean of its divisors is an integer number (4832502480).

Almost surely, 2^40035421161 is an apocalyptic number.

It is an amenable number.

40035421161 is a deficient number, since it is larger than the sum of its proper divisors (17954608599).

40035421161 is a wasteful number, since it uses less digits than its factorization.

40035421161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12391396 (or 12391393 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 40035421161 its reverse (16112453004), we get a palindrome (56147874165).

The spelling of 40035421161 in words is "forty billion, thirty-five million, four hundred twenty-one thousand, one hundred sixty-one".