1169665056 has 384 divisors, whose sum is σ = 4115059200. Its totient is φ = 316293120.

The previous prime is 1169665051. The next prime is 1169665087. The reversal of 1169665056 is 6505669611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1169665051) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13142260 + ... + 13142348.

It is an arithmetic number, because the mean of its divisors is an integer number (10716300).

Almost surely, 2^1169665056 is an apocalyptic number.

1169665056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1169665056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2057529600).

1169665056 is an abundant number, since it is smaller than the sum of its proper divisors (2945394144).

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

1169665056 is a wasteful number, since it uses less digits than its factorization.

1169665056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 1169665056 is about 34200.3663138277. The cubic root of 1169665056 is about 1053.6276807397.

The spelling of 1169665056 in words is "one billion, one hundred sixty-nine million, six hundred sixty-five thousand, fifty-six".