611171658442 has 8 divisors (see below), whose sum is σ = 970684398756. Its totient is φ = 287610192192.

The previous prime is 611171658371. The next prime is 611171658443. The reversal of 611171658442 is 244856171116.

611171658442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 456328621441 + 154843037001 = 675521^2 + 393501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 611171658392 and 611171658401.

It is not an unprimeable number, because it can be changed into a prime (611171658443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8987818473 + ... + 8987818540.

Almost surely, 2^611171658442 is an apocalyptic number.

611171658442 is a deficient number, since it is larger than the sum of its proper divisors (359512740314).

611171658442 is a wasteful number, since it uses less digits than its factorization.

611171658442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17975637032.

The product of its digits is 322560, while the sum is 46.

The spelling of 611171658442 in words is "six hundred eleven billion, one hundred seventy-one million, six hundred fifty-eight thousand, four hundred forty-two".