10600015661 has 4 divisors (see below), whose sum is σ = 11223546012. Its totient is φ = 9976485312.

The previous prime is 10600015637. The next prime is 10600015709. The reversal of 10600015661 is 16651000601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16651000601 = 3719 ⋅4477279.

It can be written as a sum of positive squares in 2 ways, for example, as 9629693161 + 970322500 = 98131^2 + 31150^2 .

It is a cyclic number.

It is not a de Polignac number, because 10600015661 - 2¹⁰ = 10600014637 is a prime.

It is a super-2 number, since 2×10600015661² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10600015661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10600015061) 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, 311765150 + ... + 311765183.

It is an arithmetic number, because the mean of its divisors is an integer number (2805886503).

Almost surely, 2^10600015661 is an apocalyptic number.

It is an amenable number.

10600015661 is a deficient number, since it is larger than the sum of its proper divisors (623530351).

10600015661 is an equidigital number, since it uses as much as digits as its factorization.

10600015661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623530350.

The product of its (nonzero) digits is 1080, while the sum is 26.

The spelling of 10600015661 in words is "ten billion, six hundred million, fifteen thousand, six hundred sixty-one".