9970197615 has 48 divisors (see below), whose sum is σ = 19852941888. Its totient is φ = 4534161408.

The previous prime is 9970197613. The next prime is 9970197631. The reversal of 9970197615 is 5167910799.

It is a happy number.

9970197615 is a `hidden beast` number, since 9 + 9 + 7 + 0 + 19 + 7 + 615 = 666.

It is not a de Polignac number, because 9970197615 - 2¹ = 9970197613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9970197613) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21204 + ... + 142793.

It is an arithmetic number, because the mean of its divisors is an integer number (413602956).

Almost surely, 2^9970197615 is an apocalyptic number.

9970197615 is a deficient number, since it is larger than the sum of its proper divisors (9882744273).

9970197615 is a wasteful number, since it uses less digits than its factorization.

9970197615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164208 (or 164205 counting only the distinct ones).

The product of its (nonzero) digits is 1071630, while the sum is 54.

The square root of 9970197615 is about 99850.8768864851. The cubic root of 9970197615 is about 2152.2923172901.

The spelling of 9970197615 in words is "nine billion, nine hundred seventy million, one hundred ninety-seven thousand, six hundred fifteen".