40163220424161 has 24 divisors (see below), whose sum is σ = 58240859344200. Its totient is φ = 26670569619456.

The previous prime is 40163220424157. The next prime is 40163220424211. The reversal of 40163220424161 is 16142402236104.

40163220424161 is a `hidden beast` number, since 4 + 0 + 1 + 6 + 3 + 220 + 424 + 1 + 6 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10863246851136 + 29299973573025 = 3295944^2 + 5412945^2 .

It is not a de Polignac number, because 40163220424161 - 2² = 40163220424157 is a prime.

It is a super-2 number, since 2×40163220424161² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40163220424661) 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, 92657665 + ... + 93090113.

It is an arithmetic number, because the mean of its divisors is an integer number (2426702472675).

Almost surely, 2^{40163220424161} is an apocalyptic number.

It is an amenable number.

40163220424161 is a deficient number, since it is larger than the sum of its proper divisors (18077638920039).

40163220424161 is a wasteful number, since it uses less digits than its factorization.

40163220424161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472865 (or 472862 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 40163220424161 in words is "forty trillion, one hundred sixty-three billion, two hundred twenty million, four hundred twenty-four thousand, one hundred sixty-one".