1163290128 has 480 divisors, whose sum is σ = 4255727616. Its totient is φ = 266112000.

The previous prime is 1163290123. The next prime is 1163290129. The reversal of 1163290128 is 8210923611.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163290123) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16384333 + ... + 16384403.

Almost surely, 2^1163290128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1163290128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2127863808).

1163290128 is an abundant number, since it is smaller than the sum of its proper divisors (3092437488).

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

1163290128 is a wasteful number, since it uses less digits than its factorization.

1163290128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1163290128 is about 34107.0392734403. The cubic root of 1163290128 is about 1051.7100262439.

The spelling of 1163290128 in words is "one billion, one hundred sixty-three million, two hundred ninety thousand, one hundred twenty-eight".