40402506303161 has 8 divisors (see below), whose sum is σ = 42832003352040. Its totient is φ = 37978884702208.

The previous prime is 40402506303149. The next prime is 40402506303217. The reversal of 40402506303161 is 16130360520404.

40402506303161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 27531596667136 + 12870909636025 = 5247056^2 + 3587605^2 .

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 40402506303161 - 2²⁶ = 40402439194297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40402506303961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1468847816 + ... + 1468875321.

It is an arithmetic number, because the mean of its divisors is an integer number (5354000419005).

Almost surely, 2^{40402506303161} is an apocalyptic number.

It is an amenable number.

40402506303161 is a deficient number, since it is larger than the sum of its proper divisors (2429497048879).

40402506303161 is a wasteful number, since it uses less digits than its factorization.

40402506303161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2937723963.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 40402506303161 its reverse (16130360520404), we get a palindrome (56532866823565).

The spelling of 40402506303161 in words is "forty trillion, four hundred two billion, five hundred six million, three hundred three thousand, one hundred sixty-one".