10664665201642 has 16 divisors (see below), whose sum is σ = 16073216083080. Its totient is φ = 5306986499328.

The previous prime is 10664665201577. The next prime is 10664665201657. The reversal of 10664665201642 is 24610256646601.

It can be written as a sum of positive squares in 4 ways, for example, as 6127897260681 + 4536767940961 = 2475459^2 + 2129969^2 .

It is a super-2 number, since 2×10664665201642² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14642043 + ... + 15353134.

Almost surely, 2^{10664665201642} is an apocalyptic number.

10664665201642 is a deficient number, since it is larger than the sum of its proper divisors (5408550881438).

10664665201642 is a wasteful number, since it uses less digits than its factorization.

10664665201642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29996025.

The product of its (nonzero) digits is 2488320, while the sum is 49.

The spelling of 10664665201642 in words is "ten trillion, six hundred sixty-four billion, six hundred sixty-five million, two hundred one thousand, six hundred forty-two".