16554540043165 has 16 divisors (see below), whose sum is σ = 20550746764800. Its totient is φ = 12786778815552.

The previous prime is 16554540043109. The next prime is 16554540043213. The reversal of 16554540043165 is 56134004545561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16554540043165 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, 10306516 + ... + 11803954.

It is an arithmetic number, because the mean of its divisors is an integer number (1284421672800).

Almost surely, 2^{16554540043165} is an apocalyptic number.

It is an amenable number.

16554540043165 is a deficient number, since it is larger than the sum of its proper divisors (3996206721635).

16554540043165 is a wasteful number, since it uses less digits than its factorization.

16554540043165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573716.

The product of its (nonzero) digits is 4320000, while the sum is 49.

The spelling of 16554540043165 in words is "sixteen trillion, five hundred fifty-four billion, five hundred forty million, forty-three thousand, one hundred sixty-five".