40004155163 has 16 divisors (see below), whose sum is σ = 46177931520. Its totient is φ = 33945543456.

The previous prime is 40004155157. The next prime is 40004155199. The reversal of 40004155163 is 36155140004.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40004155163 - 2¹⁸ = 40003893019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40004151163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1123193 + ... + 1158261.

It is an arithmetic number, because the mean of its divisors is an integer number (2886120720).

Almost surely, 2^40004155163 is an apocalyptic number.

40004155163 is a deficient number, since it is larger than the sum of its proper divisors (6173776357).

40004155163 is a wasteful number, since it uses less digits than its factorization.

40004155163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36706.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 40004155163 its reverse (36155140004), we get a palindrome (76159295167).

The spelling of 40004155163 in words is "forty billion, four million, one hundred fifty-five thousand, one hundred sixty-three".