1165861483488 has 960 divisors, whose sum is σ = 4080287711808. Its totient is φ = 323202908160.

The previous prime is 1165861483453. The next prime is 1165861483601. The reversal of 1165861483488 is 8843841685611.

It is a happy number.

1165861483488 is a `hidden beast` number, since 1 + 1 + 6 + 5 + 8 + 6 + 148 + 3 + 488 = 666.

It is a super-2 number, since 2×1165861483488² (a number of 25 digits) contains 22 as substring.

Its product of digits (35389440) is a multiple of the sum of its prime divisors (960).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1420050118 + ... + 1420050938.

Almost surely, 2^{1165861483488} is an apocalyptic number.

1165861483488 is a gapful number since it is divisible by the number (18) 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 1165861483488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2040143855904).

1165861483488 is an abundant number, since it is smaller than the sum of its proper divisors (2914426228320).

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

1165861483488 is a wasteful number, since it uses less digits than its factorization.

1165861483488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977 (or 960 counting only the distinct ones).

The product of its digits is 35389440, while the sum is 63.

The spelling of 1165861483488 in words is "one trillion, one hundred sixty-five billion, eight hundred sixty-one million, four hundred eighty-three thousand, four hundred eighty-eight".