40104164461 has 2 divisors, whose sum is σ = 40104164462. Its totient is φ = 40104164460.

The previous prime is 40104164453. The next prime is 40104164479. The reversal of 40104164461 is 16446140104.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23476061961 + 16628102500 = 153219^2 + 128950^2 .

It is a cyclic number.

It is not a de Polignac number, because 40104164461 - 2³ = 40104164453 is a prime.

It is a super-2 number, since 2×40104164461² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40104164411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20052082230 + 20052082231.

It is an arithmetic number, because the mean of its divisors is an integer number (20052082231).

Almost surely, 2^40104164461 is an apocalyptic number.

It is an amenable number.

40104164461 is a deficient number, since it is larger than the sum of its proper divisors (1).

40104164461 is an equidigital number, since it uses as much as digits as its factorization.

40104164461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 31.

The spelling of 40104164461 in words is "forty billion, one hundred four million, one hundred sixty-four thousand, four hundred sixty-one".