12611061642042 has 12 divisors (see below), whose sum is σ = 27323966891130. Its totient is φ = 4203687214008.

The previous prime is 12611061642031. The next prime is 12611061642061. The reversal of 12611061642042 is 24024616011621.

12611061642042 is a `hidden beast` number, since 1 + 2 + 6 + 1 + 1 + 0 + 6 + 1 + 642 + 0 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12004499492001 + 606562150041 = 3464751^2 + 778821^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12611061641988 and 12611061642006.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 350307267817 + ... + 350307267852.

Almost surely, 2^{12611061642042} is an apocalyptic number.

12611061642042 is an abundant number, since it is smaller than the sum of its proper divisors (14712905249088).

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

12611061642042 is a wasteful number, since it uses less digits than its factorization.

12611061642042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700614535677 (or 700614535674 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

Adding to 12611061642042 its reverse (24024616011621), we get a palindrome (36635677653663).

The spelling of 12611061642042 in words is "twelve trillion, six hundred eleven billion, sixty-one million, six hundred forty-two thousand, forty-two".