40244069866 has 32 divisors (see below), whose sum is σ = 81050997888. Its totient is φ = 14473391040.

The previous prime is 40244069849. The next prime is 40244069891. The reversal of 40244069866 is 66896044204.

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, 10048965 + ... + 10052968.

It is an arithmetic number, because the mean of its divisors is an integer number (2532843684).

Almost surely, 2^40244069866 is an apocalyptic number.

40244069866 is an abundant number, since it is smaller than the sum of its proper divisors (40806928022).

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

40244069866 is a wasteful number, since it uses less digits than its factorization.

40244069866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20101966.

The product of its (nonzero) digits is 1990656, while the sum is 49.

The spelling of 40244069866 in words is "forty billion, two hundred forty-four million, sixty-nine thousand, eight hundred sixty-six".