116505641 has 16 divisors (see below), whose sum is σ = 144426240. Its totient is φ = 91691520.

The previous prime is 116505617. The next prime is 116505667. The reversal of 116505641 is 146505611.

It is a cyclic number.

It is not a de Polignac number, because 116505641 - 2¹⁸ = 116243497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (116505601) 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, 7061 + ... + 16818.

It is an arithmetic number, because the mean of its divisors is an integer number (9026640).

Almost surely, 2^116505641 is an apocalyptic number.

It is an amenable number.

116505641 is a deficient number, since it is larger than the sum of its proper divisors (27920599).

116505641 is a wasteful number, since it uses less digits than its factorization.

116505641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23944.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 116505641 is about 10793.7778835772. Note that the first 3 decimals coincide. The cubic root of 116505641 is about 488.4074927140.

The spelling of 116505641 in words is "one hundred sixteen million, five hundred five thousand, six hundred forty-one".