40118656617 has 40 divisors (see below), whose sum is σ = 67937260160. Its totient is φ = 23389002720.

The previous prime is 40118656583. The next prime is 40118656639. The reversal of 40118656617 is 71665681104.

40118656617 is a `hidden beast` number, since 4 + 0 + 1 + 1 + 86 + 566 + 1 + 7 = 666.

It is not a de Polignac number, because 40118656617 - 2⁷ = 40118656489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40118656657) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 982609 + ... + 1022622.

It is an arithmetic number, because the mean of its divisors is an integer number (1698431504).

Almost surely, 2^40118656617 is an apocalyptic number.

It is an amenable number.

40118656617 is a deficient number, since it is larger than the sum of its proper divisors (27818603543).

40118656617 is a wasteful number, since it uses less digits than its factorization.

40118656617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005275 (or 2005266 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 40118656617 in words is "forty billion, one hundred eighteen million, six hundred fifty-six thousand, six hundred seventeen".