40165967536 has 10 divisors (see below), whose sum is σ = 77821562132. Its totient is φ = 20082983760.

The previous prime is 40165967533. The next prime is 40165967573. The reversal of 40165967536 is 63576956104.

It is a super-2 number, since 2×40165967536² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40165967533) by changing a digit.

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, 1255186470 + ... + 1255186501.

Almost surely, 2^40165967536 is an apocalyptic number.

It is an amenable number.

40165967536 is a deficient number, since it is larger than the sum of its proper divisors (37655594596).

40165967536 is a wasteful number, since it uses less digits than its factorization.

40165967536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510372979 (or 2510372973 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 52.

The spelling of 40165967536 in words is "forty billion, one hundred sixty-five million, nine hundred sixty-seven thousand, five hundred thirty-six".