116278164 has 36 divisors (see below), whose sum is σ = 311216724. Its totient is φ = 36479232.

The previous prime is 116278163. The next prime is 116278171. The reversal of 116278164 is 461872611.

It is a happy number.

116278164 is a `hidden beast` number, since 11 + 627 + 8 + 16 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 42146064 + 74132100 = 6492^2 + 8610^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×116278164² = 27041222846421792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116278163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94387 + ... + 95610.

It is an arithmetic number, because the mean of its divisors is an integer number (8644909).

Almost surely, 2^116278164 is an apocalyptic number.

It is an amenable number.

116278164 is an abundant number, since it is smaller than the sum of its proper divisors (194938560).

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

116278164 is a wasteful number, since it uses less digits than its factorization.

116278164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190024 (or 190019 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 116278164 is about 10783.2353215535. The cubic root of 116278164 is about 488.0894141007.

It can be divided in two parts, 11627 and 8164, that added together give a palindrome (19791).

The spelling of 116278164 in words is "one hundred sixteen million, two hundred seventy-eight thousand, one hundred sixty-four".