9662551171 has 24 divisors (see below), whose sum is σ = 12661134624. Its totient is φ = 7195368960.

The previous prime is 9662551153. The next prime is 9662551187. The reversal of 9662551171 is 1711552669.

It is not a de Polignac number, because 9662551171 - 2¹⁵ = 9662518403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9662551121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220120 + ... + 260341.

It is an arithmetic number, because the mean of its divisors is an integer number (527547276).

Almost surely, 2^9662551171 is an apocalyptic number.

9662551171 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

9662551171 is a deficient number, since it is larger than the sum of its proper divisors (2998583453).

9662551171 is a wasteful number, since it uses less digits than its factorization.

9662551171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480511 (or 480498 counting only the distinct ones).

The product of its digits is 113400, while the sum is 43.

The square root of 9662551171 is about 98298.2765413514. The cubic root of 9662551171 is about 2129.9231584907.

The spelling of 9662551171 in words is "nine billion, six hundred sixty-two million, five hundred fifty-one thousand, one hundred seventy-one".