617422260240 has 200 divisors, whose sum is σ = 2145276151128. Its totient is φ = 164578590720.

The previous prime is 617422260223. The next prime is 617422260269. The reversal of 617422260240 is 42062224716.

617422260240 is a `hidden beast` number, since 6 + 1 + 7 + 4 + 2 + 2 + 2 + 602 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 87973932816 + 529448327424 = 296604^2 + 727632^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 617422260195 and 617422260204.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16965904 + ... + 17002256.

Almost surely, 2^617422260240 is an apocalyptic number.

617422260240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 617422260240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1072638075564).

617422260240 is an abundant number, since it is smaller than the sum of its proper divisors (1527853890888).

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

617422260240 is a wasteful number, since it uses less digits than its factorization.

617422260240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38999 (or 38984 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

Adding to 617422260240 its reverse (42062224716), we get a palindrome (659484484956).

The spelling of 617422260240 in words is "six hundred seventeen billion, four hundred twenty-two million, two hundred sixty thousand, two hundred forty".