40623238535161 has 4 divisors (see below), whose sum is σ = 40623282406900. Its totient is φ = 40623194663424.

The previous prime is 40623238535129. The next prime is 40623238535179. The reversal of 40623238535161 is 16153583232604.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16739922188025 + 23883316347136 = 4091445^2 + 4887056^2 .

It is a cyclic number.

It is not a de Polignac number, because 40623238535161 - 2⁵ = 40623238535129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40623238535101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20516316 + ... + 22409053.

It is an arithmetic number, because the mean of its divisors is an integer number (10155820601725).

Almost surely, 2^{40623238535161} is an apocalyptic number.

It is an amenable number.

40623238535161 is a deficient number, since it is larger than the sum of its proper divisors (43871739).

40623238535161 is an equidigital number, since it uses as much as digits as its factorization.

40623238535161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43871738.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 40623238535161 in words is "forty trillion, six hundred twenty-three billion, two hundred thirty-eight million, five hundred thirty-five thousand, one hundred sixty-one".