40122742166 has 16 divisors (see below), whose sum is σ = 65781031344. Its totient is φ = 18241797024.

The previous prime is 40122742141. The next prime is 40122742171. The reversal of 40122742166 is 66124722104.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11514545 + ... + 11518028.

It is an arithmetic number, because the mean of its divisors is an integer number (4111314459).

Almost surely, 2^40122742166 is an apocalyptic number.

40122742166 is a deficient number, since it is larger than the sum of its proper divisors (25658289178).

40122742166 is a wasteful number, since it uses less digits than its factorization.

40122742166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23032655.

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 40122742166 in words is "forty billion, one hundred twenty-two million, seven hundred forty-two thousand, one hundred sixty-six".