116643655 has 16 divisors (see below), whose sum is σ = 145696320. Its totient is φ = 89539072.

The previous prime is 116643643. The next prime is 116643671. The reversal of 116643655 is 556346611.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116643655 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21807 + ... + 26623.

It is an arithmetic number, because the mean of its divisors is an integer number (9106020).

Almost surely, 2^116643655 is an apocalyptic number.

116643655 is a deficient number, since it is larger than the sum of its proper divisors (29052665).

116643655 is a wasteful number, since it uses less digits than its factorization.

116643655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5018.

The product of its digits is 64800, while the sum is 37.

The square root of 116643655 is about 10800.1692116374. The cubic root of 116643655 is about 488.6002744299.

The spelling of 116643655 in words is "one hundred sixteen million, six hundred forty-three thousand, six hundred fifty-five".