245226266240 has 64 divisors (see below), whose sum is σ = 586304109000. Its totient is φ = 98080456704.

The previous prime is 245226266221. The next prime is 245226266249. The reversal of 245226266240 is 42662622542.

245226266240 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 220456542784 + 24769723456 = 469528^2 + 157384^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×245226266240² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245226266249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11617616 + ... + 11638704.

Almost surely, 2^245226266240 is an apocalyptic number.

245226266240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245226266240 is an abundant number, since it is smaller than the sum of its proper divisors (341077842760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245226266240 is a wasteful number, since it uses less digits than its factorization.

245226266240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39277 (or 39265 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 41.

Adding to 245226266240 its reverse (42662622542), we get a palindrome (287888888782).

The spelling of 245226266240 in words is "two hundred forty-five billion, two hundred twenty-six million, two hundred sixty-six thousand, two hundred forty".