40651663895075 has 24 divisors (see below), whose sum is σ = 50496320171520. Its totient is φ = 32464423706400.

The previous prime is 40651663895069. The next prime is 40651663895077. The reversal of 40651663895075 is 57059836615604.

It is a de Polignac number, because none of the positive numbers 2^k-40651663895075 is a prime.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (40651663895077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49763072 + ... + 50573378.

It is an arithmetic number, because the mean of its divisors is an integer number (2104013340480).

Almost surely, 2^{40651663895075} is an apocalyptic number.

40651663895075 is a deficient number, since it is larger than the sum of its proper divisors (9844656276445).

40651663895075 is a wasteful number, since it uses less digits than its factorization.

40651663895075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813827 (or 813822 counting only the distinct ones).

The product of its (nonzero) digits is 163296000, while the sum is 65.

The spelling of 40651663895075 in words is "forty trillion, six hundred fifty-one billion, six hundred sixty-three million, eight hundred ninety-five thousand, seventy-five".