9987166607 has 12 divisors (see below), whose sum is σ = 10983225120. Its totient is φ = 9074614560.

The previous prime is 9987166601. The next prime is 9987166621. The reversal of 9987166607 is 7066617899.

9987166607 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9987166607 - 2⁴ = 9987166591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9987166601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229619 + ... + 269627.

It is an arithmetic number, because the mean of its divisors is an integer number (915268760).

Almost surely, 2^9987166607 is an apocalyptic number.

9987166607 is a deficient number, since it is larger than the sum of its proper divisors (996058513).

9987166607 is a wasteful number, since it uses less digits than its factorization.

9987166607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42094 (or 42083 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 59.

The square root of 9987166607 is about 99935.8124347824. The cubic root of 9987166607 is about 2153.5126719296.

The spelling of 9987166607 in words is "nine billion, nine hundred eighty-seven million, one hundred sixty-six thousand, six hundred seven".