40020231757666 has 16 divisors (see below), whose sum is σ = 60251818323168. Its totient is φ = 19936310850400.

The previous prime is 40020231757613. The next prime is 40020231757673. The reversal of 40020231757666 is 66675713202004.

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, 307120 + ... + 8951803.

It is an arithmetic number, because the mean of its divisors is an integer number (3765738645198).

Almost surely, 2^{40020231757666} is an apocalyptic number.

40020231757666 is a deficient number, since it is larger than the sum of its proper divisors (20231586565502).

40020231757666 is a wasteful number, since it uses less digits than its factorization.

40020231757666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9266897.

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 40020231757666 in words is "forty trillion, twenty billion, two hundred thirty-one million, seven hundred fifty-seven thousand, six hundred sixty-six".