40040100066 has 8 divisors (see below), whose sum is σ = 80080200144. Its totient is φ = 13346700020.

The previous prime is 40040100049. The next prime is 40040100071. The reversal of 40040100066 is 66000104004.

It is a sphenic number, since it is the product of 3 distinct primes.

40040100066 is an admirable number.

It is a super-2 number, since 2×40040100066² (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 3 ways as a sum of consecutive naturals, for example, 3336675000 + ... + 3336675011.

It is an arithmetic number, because the mean of its divisors is an integer number (10010025018).

Almost surely, 2^40040100066 is an apocalyptic number.

40040100066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40040100066 is a wasteful number, since it uses less digits than its factorization.

40040100066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6673350016.

The product of its (nonzero) digits is 576, while the sum is 21.

The spelling of 40040100066 in words is "forty billion, forty million, one hundred thousand, sixty-six".