10206244156661 has 32 divisors (see below), whose sum is σ = 12388572241920. Its totient is φ = 8208189904896.

The previous prime is 10206244156649. The next prime is 10206244156673. The reversal of 10206244156661 is 16665144260201.

10206244156661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10206244156649) and next prime (10206244156673).

It is a de Polignac number, because none of the positive numbers 2^k-10206244156661 is a prime.

It is a super-2 number, since 2×10206244156661² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10206244156621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97345655 + ... + 97450443.

It is an arithmetic number, because the mean of its divisors is an integer number (387142882560).

Almost surely, 2^{10206244156661} is an apocalyptic number.

It is an amenable number.

10206244156661 is a deficient number, since it is larger than the sum of its proper divisors (2182328085259).

10206244156661 is a wasteful number, since it uses less digits than its factorization.

10206244156661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107333.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 10206244156661 in words is "ten trillion, two hundred six billion, two hundred forty-four million, one hundred fifty-six thousand, six hundred sixty-one".