16551256351045 has 64 divisors (see below), whose sum is σ = 22257345116160. Its totient is φ = 11733191884800.

The previous prime is 16551256351031. The next prime is 16551256351051. The reversal of 16551256351045 is 54015365215561.

It is not a de Polignac number, because 16551256351045 - 2⁷ = 16551256350917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16551256351045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 124736746 + ... + 124869364.

It is an arithmetic number, because the mean of its divisors is an integer number (347771017440).

Almost surely, 2^{16551256351045} is an apocalyptic number.

It is an amenable number.

16551256351045 is a deficient number, since it is larger than the sum of its proper divisors (5706088765115).

16551256351045 is a wasteful number, since it uses less digits than its factorization.

16551256351045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133166.

The product of its (nonzero) digits is 2700000, while the sum is 49.

The spelling of 16551256351045 in words is "sixteen trillion, five hundred fifty-one billion, two hundred fifty-six million, three hundred fifty-one thousand, forty-five".