9166842157 has 4 divisors (see below), whose sum is σ = 10000191456. Its totient is φ = 8333492860.

The previous prime is 9166842151. The next prime is 9166842173. The reversal of 9166842157 is 7512486619.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-9166842157 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 9166842157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9166842151) 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, 416674633 + ... + 416674654.

It is an arithmetic number, because the mean of its divisors is an integer number (2500047864).

Almost surely, 2^9166842157 is an apocalyptic number.

It is an amenable number.

9166842157 is a deficient number, since it is larger than the sum of its proper divisors (833349299).

9166842157 is a wasteful number, since it uses less digits than its factorization.

9166842157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833349298.

The product of its digits is 725760, while the sum is 49.

The square root of 9166842157 is about 95743.6272396236. The cubic root of 9166842157 is about 2092.8587480777.

The spelling of 9166842157 in words is "nine billion, one hundred sixty-six million, eight hundred forty-two thousand, one hundred fifty-seven".