116553261 has 16 divisors (see below), whose sum is σ = 172408320. Its totient is φ = 69439920.

The previous prime is 116553257. The next prime is 116553287. The reversal of 116553261 is 162355611.

It is not a de Polignac number, because 116553261 - 2² = 116553257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116553221) 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, 27985 + ... + 31878.

It is an arithmetic number, because the mean of its divisors is an integer number (10775520).

Almost surely, 2^116553261 is an apocalyptic number.

116553261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

116553261 is a deficient number, since it is larger than the sum of its proper divisors (55855059).

116553261 is a wasteful number, since it uses less digits than its factorization.

116553261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59936.

The product of its digits is 5400, while the sum is 30.

The square root of 116553261 is about 10795.9835587129. The cubic root of 116553261 is about 488.4740268221.

The spelling of 116553261 in words is "one hundred sixteen million, five hundred fifty-three thousand, two hundred sixty-one".