10142563402661 has 8 divisors (see below), whose sum is σ = 10948494228480. Its totient is φ = 9367045060912.

The previous prime is 10142563402649. The next prime is 10142563402663. The reversal of 10142563402661 is 16620436524101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10142563402661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10142563402663) 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, 7603120325 + ... + 7603121658.

It is an arithmetic number, because the mean of its divisors is an integer number (1368561778560).

Almost surely, 2^{10142563402661} is an apocalyptic number.

It is an amenable number.

10142563402661 is a deficient number, since it is larger than the sum of its proper divisors (805930825819).

10142563402661 is a wasteful number, since it uses less digits than its factorization.

10142563402661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15206242035.

The product of its (nonzero) digits is 207360, while the sum is 41.

Adding to 10142563402661 its reverse (16620436524101), we get a palindrome (26762999926762).

The spelling of 10142563402661 in words is "ten trillion, one hundred forty-two billion, five hundred sixty-three million, four hundred two thousand, six hundred sixty-one".