611401241552 has 80 divisors (see below), whose sum is σ = 1205518080000. Its totient is φ = 300355558272.

The previous prime is 611401241543. The next prime is 611401241587. The reversal of 611401241552 is 255142104116.

It is a happy number.

It is a super-2 number, since 2×611401241552² (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 15 ways as a sum of consecutive naturals, for example, 124291349 + ... + 124296267.

It is an arithmetic number, because the mean of its divisors is an integer number (15068976000).

Almost surely, 2^611401241552 is an apocalyptic number.

It is an amenable number.

611401241552 is a deficient number, since it is larger than the sum of its proper divisors (594116838448).

611401241552 is a wasteful number, since it uses less digits than its factorization.

611401241552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5608 (or 5602 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 611401241552 its reverse (255142104116), we get a palindrome (866543345668).

The spelling of 611401241552 in words is "six hundred eleven billion, four hundred one million, two hundred forty-one thousand, five hundred fifty-two".