40376666656 has 12 divisors (see below), whose sum is σ = 79491562542. Its totient is φ = 20188333312.

The previous prime is 40376666641. The next prime is 40376666683. The reversal of 40376666656 is 65666667304.

It can be written as a sum of positive squares in only one way, i.e., 39880090000 + 496576656 = 199700^2 + 22284^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40376666597 and 40376666606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630885385 + ... + 630885448.

Almost surely, 2^40376666656 is an apocalyptic number.

It is an amenable number.

40376666656 is a deficient number, since it is larger than the sum of its proper divisors (39114895886).

40376666656 is a wasteful number, since it uses less digits than its factorization.

40376666656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261770843 (or 1261770835 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 55.

The spelling of 40376666656 in words is "forty billion, three hundred seventy-six million, six hundred sixty-six thousand, six hundred fifty-six".