611407263626656 has 48 divisors (see below), whose sum is σ = 1380742602865920. Its totient is φ = 261064777800960.

The previous prime is 611407263626651. The next prime is 611407263626699. The reversal of 611407263626656 is 656626362704116.

It is a junction number, because it is equal to n+sod(n) for n = 611407263626594 and 611407263626603.

It is not an unprimeable number, because it can be changed into a prime (611407263626651) 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, 5035911091 + ... + 5036032498.

It is an arithmetic number, because the mean of its divisors is an integer number (28765470893040).

Almost surely, 2^{611407263626656} is an apocalyptic number.

It is an amenable number.

611407263626656 is an abundant number, since it is smaller than the sum of its proper divisors (769335339239264).

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

611407263626656 is a wasteful number, since it uses less digits than its factorization.

611407263626656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10071943877 (or 10071943869 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 61.

The spelling of 611407263626656 in words is "six hundred eleven trillion, four hundred seven billion, two hundred sixty-three million, six hundred twenty-six thousand, six hundred fifty-six".