118640541506 has 8 divisors (see below), whose sum is σ = 178000807824. Its totient is φ = 59306938900.

The previous prime is 118640541491. The next prime is 118640541557. The reversal of 118640541506 is 605145046811.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6654800 + ... + 6672603.

It is an arithmetic number, because the mean of its divisors is an integer number (22250100978).

Almost surely, 2^118640541506 is an apocalyptic number.

118640541506 is a deficient number, since it is larger than the sum of its proper divisors (59360266318).

118640541506 is a wasteful number, since it uses less digits than its factorization.

118640541506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13331856.

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 118640541506 in words is "one hundred eighteen billion, six hundred forty million, five hundred forty-one thousand, five hundred six".