16657535044406 has 8 divisors (see below), whose sum is σ = 24986487753504. Its totient is φ = 8328705793240.

The previous prime is 16657535044399. The next prime is 16657535044417. The reversal of 16657535044406 is 60444053575661.

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

It is a super-2 number, since 2×16657535044406² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 30526430 + ... + 31067313.

It is an arithmetic number, because the mean of its divisors is an integer number (3123310969188).

Almost surely, 2^{16657535044406} is an apocalyptic number.

16657535044406 is a deficient number, since it is larger than the sum of its proper divisors (8328952709098).

16657535044406 is a wasteful number, since it uses less digits than its factorization.

16657535044406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61728966.

The product of its (nonzero) digits is 36288000, while the sum is 56.

The spelling of 16657535044406 in words is "sixteen trillion, six hundred fifty-seven billion, five hundred thirty-five million, forty-four thousand, four hundred six".