116551920 has 80 divisors (see below), whose sum is σ = 365726592. Its totient is φ = 30700800.

The previous prime is 116551867. The next prime is 116551921. The reversal of 116551920 is 29155611.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116551921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16995 + ... + 22845.

Almost surely, 2^116551920 is an apocalyptic number.

116551920 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 116551920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182863296).

116551920 is an abundant number, since it is smaller than the sum of its proper divisors (249174672).

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

116551920 is a wasteful number, since it uses less digits than its factorization.

116551920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5950 (or 5944 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 30.

The square root of 116551920 is about 10795.9214521040. The cubic root of 116551920 is about 488.4721534406.

The spelling of 116551920 in words is "one hundred sixteen million, five hundred fifty-one thousand, nine hundred twenty".