16516425605 has 16 divisors (see below), whose sum is σ = 20175355200. Its totient is φ = 12977217792.

The previous prime is 16516425589. The next prime is 16516425643. The reversal of 16516425605 is 50652461561.

It is a cyclic number.

It is not a de Polignac number, because 16516425605 - 2⁴ = 16516425589 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, 39746 + ... + 186044.

It is an arithmetic number, because the mean of its divisors is an integer number (1260959700).

Almost surely, 2^16516425605 is an apocalyptic number.

It is an amenable number.

16516425605 is a deficient number, since it is larger than the sum of its proper divisors (3658929595).

16516425605 is a wasteful number, since it uses less digits than its factorization.

16516425605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146708.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 16516425605 in words is "sixteen billion, five hundred sixteen million, four hundred twenty-five thousand, six hundred five".