1101634560 has 352 divisors, whose sum is σ = 4223042880. Its totient is φ = 270729216.

The previous prime is 1101634549. The next prime is 1101634577. The reversal of 1101634560 is 654361011.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1796814 + ... + 1797426.

Almost surely, 2^1101634560 is an apocalyptic number.

1101634560 is a gapful number since it is divisible by the number (10) 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 1101634560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2111521440).

1101634560 is an abundant number, since it is smaller than the sum of its proper divisors (3121408320).

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

1101634560 is a wasteful number, since it uses less digits than its factorization.

1101634560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1101634560 is about 33190.8806752698. The cubic root of 1101634560 is about 1032.7911726405.

Adding to 1101634560 its reverse (654361011), we get a palindrome (1755995571).

The spelling of 1101634560 in words is "one billion, one hundred one million, six hundred thirty-four thousand, five hundred sixty".