40987218527161 has 8 divisors (see below), whose sum is σ = 41447953722240. Its totient is φ = 40526487880032.

The previous prime is 40987218527159. The next prime is 40987218527173. The reversal of 40987218527161 is 16172581278904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40987218527161 - 2¹ = 40987218527159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40987218527161.

It is not an unprimeable number, because it can be changed into a prime (40987218527141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18977556 + ... + 21026698.

It is an arithmetic number, because the mean of its divisors is an integer number (5180994215280).

Almost surely, 2^{40987218527161} is an apocalyptic number.

It is an amenable number.

40987218527161 is a deficient number, since it is larger than the sum of its proper divisors (460735195079).

40987218527161 is a wasteful number, since it uses less digits than its factorization.

40987218527161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273975.

The product of its (nonzero) digits is 13547520, while the sum is 61.

The spelling of 40987218527161 in words is "forty trillion, nine hundred eighty-seven billion, two hundred eighteen million, five hundred twenty-seven thousand, one hundred sixty-one".