40215517161 has 8 divisors (see below), whose sum is σ = 53642829120. Its totient is φ = 26799274992.

The previous prime is 40215517151. The next prime is 40215517163. The reversal of 40215517161 is 16171551204.

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

It is not a de Polignac number, because 40215517161 - 2⁵ = 40215517129 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40215517163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2758966 + ... + 2773503.

It is an arithmetic number, because the mean of its divisors is an integer number (6705353640).

Almost surely, 2^40215517161 is an apocalyptic number.

It is an amenable number.

40215517161 is a deficient number, since it is larger than the sum of its proper divisors (13427311959).

40215517161 is a wasteful number, since it uses less digits than its factorization.

40215517161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5534895.

The product of its (nonzero) digits is 8400, while the sum is 33.

The spelling of 40215517161 in words is "forty billion, two hundred fifteen million, five hundred seventeen thousand, one hundred sixty-one".