610581011922 has 162 divisors, whose sum is σ = 1562607190053. Its totient is φ = 171806199264.

The previous prime is 610581011899. The next prime is 610581011933. The reversal of 610581011922 is 229110185016.

610581011922 is a `hidden beast` number, since 61 + 0 + 581 + 0 + 1 + 19 + 2 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 445648369761 + 164932642161 = 667569^2 + 406119^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=552531.

It is a super-2 number, since 2×610581011922² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1926122908 + ... + 1926123224.

Almost surely, 2^610581011922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 610581011922

610581011922 is an abundant number, since it is smaller than the sum of its proper divisors (952026178131).

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

610581011922 is an equidigital number, since it uses as much as digits as its factorization.

610581011922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

Adding to 610581011922 its reverse (229110185016), we get a palindrome (839691196938).

The spelling of 610581011922 in words is "six hundred ten billion, five hundred eighty-one million, eleven thousand, nine hundred twenty-two".