9970166208250 has 16 divisors (see below), whose sum is σ = 18664151142312. Its totient is φ = 3988066483200.

The previous prime is 9970166208239. The next prime is 9970166208251. The reversal of 9970166208250 is 528026610799.

9970166208250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 3157557²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1235345554521 + 8734820653729 = 1111461^2 + 2955473^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9970166208191 and 9970166208200.

It is not an unprimeable number, because it can be changed into a prime (9970166208251) 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, 19940332167 + ... + 19940332666.

Almost surely, 2^{9970166208250} is an apocalyptic number.

9970166208250 is a deficient number, since it is larger than the sum of its proper divisors (8693984934062).

9970166208250 is a wasteful number, since it uses less digits than its factorization.

9970166208250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39880664850 (or 39880664840 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 9970166208250 in words is "nine trillion, nine hundred seventy billion, one hundred sixty-six million, two hundred eight thousand, two hundred fifty".