16551505257068 has 12 divisors (see below), whose sum is σ = 28973829850392. Its totient is φ = 8273268156960.

The previous prime is 16551505257061. The next prime is 16551505257101. The reversal of 16551505257068 is 86075250515561.

It is not an unprimeable number, because it can be changed into a prime (16551505257061) by changing a digit.

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, 621102905 + ... + 621129552.

It is an arithmetic number, because the mean of its divisors is an integer number (2414485820866).

Almost surely, 2^{16551505257068} is an apocalyptic number.

It is an amenable number.

16551505257068 is a deficient number, since it is larger than the sum of its proper divisors (12422324593324).

16551505257068 is a wasteful number, since it uses less digits than its factorization.

16551505257068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242235792 (or 1242235790 counting only the distinct ones).

The product of its (nonzero) digits is 12600000, while the sum is 56.

The spelling of 16551505257068 in words is "sixteen trillion, five hundred fifty-one billion, five hundred five million, two hundred fifty-seven thousand, sixty-eight".