40666444224064 has 14 divisors (see below), whose sum is σ = 80697475257254. Its totient is φ = 20333222112000.

The previous prime is 40666444224041. The next prime is 40666444224071. The reversal of 40666444224064 is 46042244466604.

It can be written as a sum of positive squares in only one way, i.e., 30662887358464 + 10003556865600 = 5537408^2 + 3162840^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317706595437 + ... + 317706595564.

Almost surely, 2^{40666444224064} is an apocalyptic number.

It is an amenable number.

40666444224064 is a deficient number, since it is larger than the sum of its proper divisors (40031031033190).

40666444224064 is an equidigital number, since it uses as much as digits as its factorization.

40666444224064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635413191013 (or 635413191003 counting only the distinct ones).

The product of its (nonzero) digits is 21233664, while the sum is 52.

The spelling of 40666444224064 in words is "forty trillion, six hundred sixty-six billion, four hundred forty-four million, two hundred twenty-four thousand, sixty-four".