116555021 has 8 divisors (see below), whose sum is σ = 127229088. Its totient is φ = 105894000.

The previous prime is 116555017. The next prime is 116555029. The reversal of 116555021 is 120555611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 116555021 - 2² = 116555017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116555029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33326 + ... + 36656.

It is an arithmetic number, because the mean of its divisors is an integer number (15903636).

Almost surely, 2^116555021 is an apocalyptic number.

116555021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

116555021 is a deficient number, since it is larger than the sum of its proper divisors (10674067).

116555021 is a wasteful number, since it uses less digits than its factorization.

116555021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6523.

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 116555021 is about 10796.0650702003. The cubic root of 116555021 is about 488.4764855263.

The spelling of 116555021 in words is "one hundred sixteen million, five hundred fifty-five thousand, twenty-one".