611633152056 has 128 divisors (see below), whose sum is σ = 1605653280000. Its totient is φ = 193971068928.

The previous prime is 611633152001. The next prime is 611633152073. The reversal of 611633152056 is 650251336116.

It is a super-2 number, since 2×611633152056² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7562520 + ... + 7642968.

It is an arithmetic number, because the mean of its divisors is an integer number (12544166250).

Almost surely, 2^611633152056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 611633152056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (802826640000).

611633152056 is an abundant number, since it is smaller than the sum of its proper divisors (994020127944).

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

611633152056 is a wasteful number, since it uses less digits than its factorization.

611633152056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80693 (or 80689 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The spelling of 611633152056 in words is "six hundred eleven billion, six hundred thirty-three million, one hundred fifty-two thousand, fifty-six".