16542556366 has 16 divisors (see below), whose sum is σ = 29125119456. Its totient is φ = 6898054176.

The previous prime is 16542556339. The next prime is 16542556369. The reversal of 16542556366 is 66365524561.

It is a super-2 number, since 2×16542556366² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16542556369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15967201 + ... + 15968236.

It is an arithmetic number, because the mean of its divisors is an integer number (1820319966).

Almost surely, 2^16542556366 is an apocalyptic number.

16542556366 is a deficient number, since it is larger than the sum of its proper divisors (12582563090).

16542556366 is a wasteful number, since it uses less digits than its factorization.

16542556366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31935483.

The product of its digits is 3888000, while the sum is 49.

The spelling of 16542556366 in words is "sixteen billion, five hundred forty-two million, five hundred fifty-six thousand, three hundred sixty-six".