10142412211661 has 2 divisors, whose sum is σ = 10142412211662. Its totient is φ = 10142412211660.

The previous prime is 10142412211649. The next prime is 10142412211721. The reversal of 10142412211661 is 16611221424101.

10142412211661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7945035865636 + 2197376346025 = 2818694^2 + 1482355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10142412211661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10142412210661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5071206105830 + 5071206105831.

It is an arithmetic number, because the mean of its divisors is an integer number (5071206105831).

Almost surely, 2^{10142412211661} is an apocalyptic number.

It is an amenable number.

10142412211661 is a deficient number, since it is larger than the sum of its proper divisors (1).

10142412211661 is an equidigital number, since it uses as much as digits as its factorization.

10142412211661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 32.

Adding to 10142412211661 its reverse (16611221424101), we get a palindrome (26753633635762).

The spelling of 10142412211661 in words is "ten trillion, one hundred forty-two billion, four hundred twelve million, two hundred eleven thousand, six hundred sixty-one".