40111166121 has 16 divisors (see below), whose sum is σ = 57622541760. Its totient is φ = 24672214080.

The previous prime is 40111166083. The next prime is 40111166141. The reversal of 40111166121 is 12166111104.

It is not a de Polignac number, because 40111166121 - 2⁷ = 40111165993 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40111166091 and 40111166100.

It is not an unprimeable number, because it can be changed into a prime (40111166141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156691 + ... + 323688.

It is an arithmetic number, because the mean of its divisors is an integer number (3601408860).

Almost surely, 2^40111166121 is an apocalyptic number.

It is an amenable number.

40111166121 is a deficient number, since it is larger than the sum of its proper divisors (17511375639).

40111166121 is a wasteful number, since it uses less digits than its factorization.

40111166121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482536.

The product of its (nonzero) digits is 288, while the sum is 24.

Adding to 40111166121 its reverse (12166111104), we get a palindrome (52277277225).

The spelling of 40111166121 in words is "forty billion, one hundred eleven million, one hundred sixty-six thousand, one hundred twenty-one".