116221560 has 256 divisors, whose sum is σ = 445132800. Its totient is φ = 23611392.

The previous prime is 116221559. The next prime is 116221597. The reversal of 116221560 is 65122611.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 116221560.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 316497 + ... + 316863.

It is an arithmetic number, because the mean of its divisors is an integer number (1738800).

Almost surely, 2^116221560 is an apocalyptic number.

116221560 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 116221560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222566400).

116221560 is an abundant number, since it is smaller than the sum of its proper divisors (328911240).

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

116221560 is a wasteful number, since it uses less digits than its factorization.

116221560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 116221560 is about 10780.6103723305. The cubic root of 116221560 is about 488.0102008976.

It can be divided in two parts, 1162 and 21560, that added together give a palindrome (22722).

The spelling of 116221560 in words is "one hundred sixteen million, two hundred twenty-one thousand, five hundred sixty".