240651020165137 has 4 divisors (see below), whose sum is σ = 240968921117236. Its totient is φ = 240333119213040.

The previous prime is 240651020165131. The next prime is 240651020165167. The reversal of 240651020165137 is 731561020156042.

240651020165137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 184035162193936 + 56615857971201 = 13565956^2 + 7524351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240651020165137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240651020165093 and 240651020165102.

It is not an unprimeable number, because it can be changed into a prime (240651020165131) 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, 158950474914 + ... + 158950476427.

It is an arithmetic number, because the mean of its divisors is an integer number (60242230279309).

Almost surely, 2^{240651020165137} is an apocalyptic number.

It is an amenable number.

240651020165137 is a deficient number, since it is larger than the sum of its proper divisors (317900952099).

240651020165137 is an equidigital number, since it uses as much as digits as its factorization.

240651020165137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317900952098.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 240651020165137 in words is "two hundred forty trillion, six hundred fifty-one billion, twenty million, one hundred sixty-five thousand, one hundred thirty-seven".