40661153111 has 2 divisors, whose sum is σ = 40661153112. Its totient is φ = 40661153110.

The previous prime is 40661153077. The next prime is 40661153119. The reversal of 40661153111 is 11135116604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40661153111 - 2³⁰ = 39587411287 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40661153119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20330576555 + 20330576556.

It is an arithmetic number, because the mean of its divisors is an integer number (20330576556).

Almost surely, 2^40661153111 is an apocalyptic number.

40661153111 is a deficient number, since it is larger than the sum of its proper divisors (1).

40661153111 is an equidigital number, since it uses as much as digits as its factorization.

40661153111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 29.

Adding to 40661153111 its reverse (11135116604), we get a palindrome (51796269715).

The spelling of 40661153111 in words is "forty billion, six hundred sixty-one million, one hundred fifty-three thousand, one hundred eleven".