16658481382 has 16 divisors (see below), whose sum is σ = 26307927360. Its totient is φ = 7889341032.

The previous prime is 16658481341. The next prime is 16658481391. The reversal of 16658481382 is 28318485661.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171993 + ... + 250795.

It is an arithmetic number, because the mean of its divisors is an integer number (1644245460).

Almost surely, 2^16658481382 is an apocalyptic number.

16658481382 is a deficient number, since it is larger than the sum of its proper divisors (9649445978).

16658481382 is a wasteful number, since it uses less digits than its factorization.

16658481382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84387.

The product of its digits is 2211840, while the sum is 52.

The spelling of 16658481382 in words is "sixteen billion, six hundred fifty-eight million, four hundred eighty-one thousand, three hundred eighty-two".