611401242260 has 12 divisors (see below), whose sum is σ = 1283942608788. Its totient is φ = 244560496896.

The previous prime is 611401242247. The next prime is 611401242301. The reversal of 611401242260 is 62242104116.

It can be written as a sum of positive squares in 2 ways, for example, as 393575550736 + 217825691524 = 627356^2 + 466718^2 .

It is a super-2 number, since 2×611401242260² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15285031037 + ... + 15285031076.

It is an arithmetic number, because the mean of its divisors is an integer number (106995217399).

Almost surely, 2^611401242260 is an apocalyptic number.

It is an amenable number.

611401242260 is an abundant number, since it is smaller than the sum of its proper divisors (672541366528).

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

611401242260 is a wasteful number, since it uses less digits than its factorization.

611401242260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30570062122 (or 30570062120 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 611401242260 its reverse (62242104116), we get a palindrome (673643346376).

The spelling of 611401242260 in words is "six hundred eleven billion, four hundred one million, two hundred forty-two thousand, two hundred sixty".