7161992169 has 8 divisors (see below), whose sum is σ = 10111047840. Its totient is φ = 4493798976.

The previous prime is 7161992161. The next prime is 7161992177. The reversal of 7161992169 is 9612991617.

It is an interprime number because it is at equal distance from previous prime (7161992161) and next prime (7161992177).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7161992169 - 2³ = 7161992161 is a prime.

It is a super-2 number, since 2×7161992169² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 140431219 = 7161992169 / (7 + 1 + 6 + 1 + 9 + 9 + 2 + 1 + 6 + 9).

It is not an unprimeable number, because it can be changed into a prime (7161992161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70215559 + ... + 70215660.

It is an arithmetic number, because the mean of its divisors is an integer number (1263880980).

Almost surely, 2^7161992169 is an apocalyptic number.

It is an amenable number.

7161992169 is a deficient number, since it is larger than the sum of its proper divisors (2949055671).

7161992169 is a wasteful number, since it uses less digits than its factorization.

7161992169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140431239.

The product of its digits is 367416, while the sum is 51.

The square root of 7161992169 is about 84628.5540996654. The cubic root of 7161992169 is about 1927.5749804373.

The spelling of 7161992169 in words is "seven billion, one hundred sixty-one million, nine hundred ninety-two thousand, one hundred sixty-nine".