40651566336 has 288 divisors, whose sum is σ = 127780087680. Its totient is φ = 12703924224.

The previous prime is 40651566323. The next prime is 40651566343. The reversal of 40651566336 is 63366515604.

40651566336 is a `hidden beast` number, since 4 + 0 + 6 + 5 + 1 + 5 + 6 + 633 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a junction number, because it is equal to n+sod(n) for n = 40651566291 and 40651566300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40773390 + ... + 40774386.

It is an arithmetic number, because the mean of its divisors is an integer number (443680860).

Almost surely, 2^40651566336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40651566336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63890043840).

40651566336 is an abundant number, since it is smaller than the sum of its proper divisors (87128521344).

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

40651566336 is a wasteful number, since it uses less digits than its factorization.

40651566336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386 (or 1366 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 40651566336 in words is "forty billion, six hundred fifty-one million, five hundred sixty-six thousand, three hundred thirty-six".