40468646666 has 16 divisors (see below), whose sum is σ = 69379707840. Its totient is φ = 17342484480.

The previous prime is 40468646653. The next prime is 40468646719. The reversal of 40468646666 is 66664686404.

It is a super-2 number, since 2×40468646666² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120965 + ... + 309143.

It is an arithmetic number, because the mean of its divisors is an integer number (4336231740).

Almost surely, 2^40468646666 is an apocalyptic number.

40468646666 is a deficient number, since it is larger than the sum of its proper divisors (28911061174).

40468646666 is a wasteful number, since it uses less digits than its factorization.

40468646666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203549.

The product of its (nonzero) digits is 23887872, while the sum is 56.

The spelling of 40468646666 in words is "forty billion, four hundred sixty-eight million, six hundred forty-six thousand, six hundred sixty-six".