1055991168 has 160 divisors (see below), whose sum is σ = 3165723000. Its totient is φ = 349415424.

The previous prime is 1055991163. The next prime is 1055991197. The reversal of 1055991168 is 8611995501.

1055991168 is a `hidden beast` number, since 1 + 0 + 559 + 91 + 1 + 6 + 8 = 666.

It is a super-2 number, since 2×1055991168² = 2230234693788008448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055991163) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1855588 + ... + 1856156.

Almost surely, 2^1055991168 is an apocalyptic number.

1055991168 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 1055991168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1582861500).

1055991168 is an abundant number, since it is smaller than the sum of its proper divisors (2109731832).

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

1055991168 is an equidigital number, since it uses as much as digits as its factorization.

1055991168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 45.

The square root of 1055991168 is about 32496.0177252537. The cubic root of 1055991168 is about 1018.3258349471.

The spelling of 1055991168 in words is "one billion, fifty-five million, nine hundred ninety-one thousand, one hundred sixty-eight".