611353212656 has 40 divisors (see below), whose sum is σ = 1264868745600. Its totient is φ = 285615509760.

The previous prime is 611353212653. The next prime is 611353212667. The reversal of 611353212656 is 656212353116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611353212653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21236771 + ... + 21265538.

It is an arithmetic number, because the mean of its divisors is an integer number (31621718640).

Almost surely, 2^611353212656 is an apocalyptic number.

It is an amenable number.

611353212656 is an abundant number, since it is smaller than the sum of its proper divisors (653515532944).

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

611353212656 is a wasteful number, since it uses less digits than its factorization.

611353212656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42502377 (or 42502371 counting only the distinct ones).

The product of its digits is 194400, while the sum is 41.

The spelling of 611353212656 in words is "six hundred eleven billion, three hundred fifty-three million, two hundred twelve thousand, six hundred fifty-six".