40668140220 has 48 divisors (see below), whose sum is σ = 114448850208. Its totient is φ = 10789784320.

The previous prime is 40668140209. The next prime is 40668140237. The reversal of 40668140220 is 2204186604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1708491 + ... + 1732130.

It is an arithmetic number, because the mean of its divisors is an integer number (2384351046).

Almost surely, 2^40668140220 is an apocalyptic number.

It is an amenable number.

40668140220 is an abundant number, since it is smaller than the sum of its proper divisors (73780709988).

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

40668140220 is a wasteful number, since it uses less digits than its factorization.

40668140220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3440830 (or 3440828 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The spelling of 40668140220 in words is "forty billion, six hundred sixty-eight million, one hundred forty thousand, two hundred twenty".