1165171672170 has 96 divisors (see below), whose sum is σ = 3305282220864. Its totient is φ = 282428966400.

The previous prime is 1165171672157. The next prime is 1165171672187. The reversal of 1165171672170 is 712761715611.

1165171672170 is a `hidden beast` number, since 1 + 1 + 6 + 517 + 1 + 67 + 2 + 1 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7927369 + ... + 8073011.

It is an arithmetic number, because the mean of its divisors is an integer number (34430023134).

Almost surely, 2^{1165171672170} is an apocalyptic number.

1165171672170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1165171672170 is an abundant number, since it is smaller than the sum of its proper divisors (2140110548694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1165171672170 is a wasteful number, since it uses less digits than its factorization.

1165171672170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153748 (or 153745 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 45.

The spelling of 1165171672170 in words is "one trillion, one hundred sixty-five billion, one hundred seventy-one million, six hundred seventy-two thousand, one hundred seventy".